diff --git a/examples/dictionary_compression.c b/examples/dictionary_compression.c
index 17acec98dfa138c73c8ae46ee908af6822ea3359..97bf8cb5eb411a0ed9667718021846e0dfff0ea5 100644
--- a/examples/dictionary_compression.c
+++ b/examples/dictionary_compression.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/examples/dictionary_decompression.c b/examples/dictionary_decompression.c
index 345c968c3d4055879f3f40368cf65d35b9e78040..07e6e24c66235899c0986c3624f4903c1f49a685 100644
--- a/examples/dictionary_decompression.c
+++ b/examples/dictionary_decompression.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/examples/multiple_streaming_compression.c b/examples/multiple_streaming_compression.c
index 7bfa133ee93436455e10873bab693f60f6d4ba86..e395aefbc65d997c282a0c30a0bdb15fa9ecb338 100644
--- a/examples/multiple_streaming_compression.c
+++ b/examples/multiple_streaming_compression.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/examples/simple_compression.c b/examples/simple_compression.c
index 95853faa6e13d3a7c0e4b84df1e2e4640c65aba2..9ade424a2e49271c2b381836c42695c722c9ae40 100644
--- a/examples/simple_compression.c
+++ b/examples/simple_compression.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/examples/simple_decompression.c b/examples/simple_decompression.c
index 9e9fcc9ed785769e4155752cd77814f1dce1a20d..c1818a95c84c64f4e771f3ed2f9bf0e855774d3a 100644
--- a/examples/simple_decompression.c
+++ b/examples/simple_decompression.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #include <stdlib.h>    // malloc, exit
diff --git a/examples/streaming_compression.c b/examples/streaming_compression.c
index ac7ee7687f44ec8b6ec4ce8adb6e7bdacbed36a6..f76364d8410f83d9303f081e2dd71ddf3e13e9c3 100644
--- a/examples/streaming_compression.c
+++ b/examples/streaming_compression.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/examples/streaming_decompression.c b/examples/streaming_decompression.c
index 76dd851691a592056dea753d83a98ca357974bfb..504a5e31694770858edbe0461230e724a3e19312 100644
--- a/examples/streaming_decompression.c
+++ b/examples/streaming_decompression.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/common/compiler.h b/lib/common/compiler.h
index d7225c443e91d922efb6aa7b164300a941d16e55..3a7553c3807eeeb8f750fa9a7993df3d7704ac19 100644
--- a/lib/common/compiler.h
+++ b/lib/common/compiler.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_COMPILER_H
diff --git a/lib/common/error_private.c b/lib/common/error_private.c
index b5b14b509cf1351420893292640680b9dde1e2ec..8045e445e051faae7af595ade9ba5b192063d7ad 100644
--- a/lib/common/error_private.c
+++ b/lib/common/error_private.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 /* The purpose of this file is to have a single list of error strings embedded in binary */
diff --git a/lib/common/error_private.h b/lib/common/error_private.h
index a55bce8472933e6875bba07cfa3947e35864ed01..0d2fa7e34b01459d3f5afa858ae133cfdd9db144 100644
--- a/lib/common/error_private.h
+++ b/lib/common/error_private.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 /* Note : this module is expected to remain private, do not expose it */
diff --git a/lib/common/mem.h b/lib/common/mem.h
index df85404fb869725ab9b03b2857d0f04c30f26754..23335c3146d75791188ec641ea9419a194557956 100644
--- a/lib/common/mem.h
+++ b/lib/common/mem.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef MEM_H_MODULE
diff --git a/lib/common/pool.c b/lib/common/pool.c
index d7080f034e3f2805230f640c3d8494b47ccc1b41..5f19f331b91e3993e05dd994b865f7a44e32d0b6 100644
--- a/lib/common/pool.c
+++ b/lib/common/pool.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/common/pool.h b/lib/common/pool.h
index 411b73e1188037854fd2f09b10b6f38c175adf1a..08c63715aaa6833ed7e93787a72d7ca045d9ea3e 100644
--- a/lib/common/pool.h
+++ b/lib/common/pool.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef POOL_H
diff --git a/lib/common/zstd_common.c b/lib/common/zstd_common.c
index 1155c60c41ef5cfd54b9491287ae42d3c8045cbf..c2041053be7f09d4eb49e60d2798dca5fc61ee98 100644
--- a/lib/common/zstd_common.c
+++ b/lib/common/zstd_common.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/common/zstd_errors.h b/lib/common/zstd_errors.h
index a69387b714a8814c9335a40c05968ae92e0c5933..bde4304c93ca33edd89350ae1117d13a0ee407c1 100644
--- a/lib/common/zstd_errors.h
+++ b/lib/common/zstd_errors.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_ERRORS_H_398273423
diff --git a/lib/common/zstd_internal.h b/lib/common/zstd_internal.h
index b8564d2bf35dba7c363ecaf088620f80a9a00959..1e20619abd9b54187cb90a1511d889a0eaaee0d5 100644
--- a/lib/common/zstd_internal.h
+++ b/lib/common/zstd_internal.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_CCOMMON_H_MODULE
diff --git a/lib/compress/zstd_compress.c b/lib/compress/zstd_compress.c
index ebb73f398dcab9c644753ea2217b401482d62793..63dfc36e94442856d256c693a0c7b2a8885f0df5 100644
--- a/lib/compress/zstd_compress.c
+++ b/lib/compress/zstd_compress.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/compress/zstd_compress.h b/lib/compress/zstd_compress.h
index a136a949dbdf3d1a38865dbe8c4a1a594b41c738..0408be8f6fe4fc406d8e8125001e1672b41927d1 100644
--- a/lib/compress/zstd_compress.h
+++ b/lib/compress/zstd_compress.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/compress/zstd_double_fast.c b/lib/compress/zstd_double_fast.c
index 437e9a2c6d0f50f07e913893d5986881c5b05416..62368736a05d717613f377e8177fc3037f38ec83 100644
--- a/lib/compress/zstd_double_fast.c
+++ b/lib/compress/zstd_double_fast.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #include "zstd_double_fast.h"
diff --git a/lib/compress/zstd_double_fast.h b/lib/compress/zstd_double_fast.h
index 64f8bfef6d41c2ca102ab6b9873a38c14ea519e2..1b7db5b3c18182796b748c256548dbf57770d14c 100644
--- a/lib/compress/zstd_double_fast.h
+++ b/lib/compress/zstd_double_fast.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_DOUBLE_FAST_H
diff --git a/lib/compress/zstd_fast.c b/lib/compress/zstd_fast.c
index 82ab15a4c094a26a4c2d4a071b3a4a32ed3817f8..22f2c10e5c6df0b1d5379c08d066f4cfc0443b1f 100644
--- a/lib/compress/zstd_fast.c
+++ b/lib/compress/zstd_fast.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #include "zstd_fast.h"
diff --git a/lib/compress/zstd_fast.h b/lib/compress/zstd_fast.h
index f18b4617e3f9d03c0804262f01b35742e16a9b8f..e15a4ce6af65efcd67a53e827e01c7d1886f28a9 100644
--- a/lib/compress/zstd_fast.h
+++ b/lib/compress/zstd_fast.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_FAST_H
diff --git a/lib/compress/zstd_lazy.c b/lib/compress/zstd_lazy.c
index 00ec1e286177fad12b1e45a7e29efc9f44f250c4..d12619ac4d4afcb548ee7958bb5af2ac05b2be99 100644
--- a/lib/compress/zstd_lazy.c
+++ b/lib/compress/zstd_lazy.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #include "zstd_lazy.h"
diff --git a/lib/compress/zstd_lazy.h b/lib/compress/zstd_lazy.h
index 451cddf96f2b8894557b817aec17056a034e91d6..b83c475b296b1fa3670f2f6e3293e0c0052c73df 100644
--- a/lib/compress/zstd_lazy.h
+++ b/lib/compress/zstd_lazy.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_LAZY_H
diff --git a/lib/compress/zstd_opt.c b/lib/compress/zstd_opt.c
index 03e945516c13ddbe8c66ad717cdd2a4f306eb248..cf5dbd86e6e03f05ca66648027378a46de63f0a9 100644
--- a/lib/compress/zstd_opt.c
+++ b/lib/compress/zstd_opt.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #include "zstd_opt.h"
diff --git a/lib/compress/zstd_opt.h b/lib/compress/zstd_opt.h
index 0991a1f1352ae9a68572d301a6d909487b2002c0..a304bd661b204f715a4a7307b4470ddc3dee7af0 100644
--- a/lib/compress/zstd_opt.h
+++ b/lib/compress/zstd_opt.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_OPT_H
diff --git a/lib/compress/zstdmt_compress.c b/lib/compress/zstdmt_compress.c
index 20122f3593d3364090dd62eff4b26ff60d44a815..ae8c63cc673898d4a36220c46591e46c9cb46a47 100644
--- a/lib/compress/zstdmt_compress.c
+++ b/lib/compress/zstdmt_compress.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/compress/zstdmt_compress.h b/lib/compress/zstdmt_compress.h
index 31e8c8db306fb033257c5f1f31bb7e410fd15bd7..11880dfd31ab2cd20ae695ebeed1d80852a77f98 100644
--- a/lib/compress/zstdmt_compress.h
+++ b/lib/compress/zstdmt_compress.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
  #ifndef ZSTDMT_COMPRESS_H
diff --git a/lib/decompress/zstd_decompress.c b/lib/decompress/zstd_decompress.c
index ada773b9a7cf911b94fcf2e375980f60623d4643..00e2fb4a25d56ef6647b1e316aa7596e588646d1 100644
--- a/lib/decompress/zstd_decompress.c
+++ b/lib/decompress/zstd_decompress.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/deprecated/zbuff.h b/lib/deprecated/zbuff.h
index e6ea84ad3b45d99fa119e99152fbc2f7689ba38d..a93115da4a1c6d134d5eca36429bf4b211745951 100644
--- a/lib/deprecated/zbuff.h
+++ b/lib/deprecated/zbuff.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 /* ***************************************************************
diff --git a/lib/deprecated/zbuff_common.c b/lib/deprecated/zbuff_common.c
index 2de45bec1705be6aa0f25c76feed7395129f6eed..661b9b0e18c5541fbd0f172d3da11c52bdc4ece8 100644
--- a/lib/deprecated/zbuff_common.c
+++ b/lib/deprecated/zbuff_common.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 /*-*************************************
diff --git a/lib/deprecated/zbuff_compress.c b/lib/deprecated/zbuff_compress.c
index 4444e95d8fd19354f37735c8e6b583a0a21bbaac..8adbaec260d57ed7c82f140ea63f21c0793e9e38 100644
--- a/lib/deprecated/zbuff_compress.c
+++ b/lib/deprecated/zbuff_compress.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/deprecated/zbuff_decompress.c b/lib/deprecated/zbuff_decompress.c
index a819d7f4042974196ba9247db1ab46dbcfa5531c..923c22b73c5767cea42514d15c4c1a41775a6c40 100644
--- a/lib/deprecated/zbuff_decompress.c
+++ b/lib/deprecated/zbuff_decompress.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/dictBuilder/cover.c b/lib/dictBuilder/cover.c
index 61497846b22749160a2a1d3a14fcf406507d44e3..f6500b3d85a9d994a8e0f8ddfce2fb3b7548dfd3 100644
--- a/lib/dictBuilder/cover.c
+++ b/lib/dictBuilder/cover.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 /* *****************************************************************************
diff --git a/lib/dictBuilder/zdict.c b/lib/dictBuilder/zdict.c
index 8e6aa9c1c6e28deb7c480a12cd6a9b7c8ad9ebee..b76e7695a9bb93baee5f6011830124983dcdc6a1 100644
--- a/lib/dictBuilder/zdict.c
+++ b/lib/dictBuilder/zdict.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/dictBuilder/zdict.h b/lib/dictBuilder/zdict.h
index 3d72a465e5e7b92a8179ea5d6c7c72bc0ffbf0fb..5f0000b1c7c892b89d37208955a8aa39b197f4a8 100644
--- a/lib/dictBuilder/zdict.h
+++ b/lib/dictBuilder/zdict.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef DICTBUILDER_H_001
diff --git a/lib/legacy/zstd_legacy.h b/lib/legacy/zstd_legacy.h
index 1126e24669f33e362a26e15aa126c1bb19064698..487ff0b284b561138f837781e60f61f8fa05d57c 100644
--- a/lib/legacy/zstd_legacy.h
+++ b/lib/legacy/zstd_legacy.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_LEGACY_H
diff --git a/lib/legacy/zstd_v01.c b/lib/legacy/zstd_v01.c
index 45f421ae6f2cfd0bc8c83f6a491be986b428f456..70003cbedffd1e2586a00322b43d94e84c296baf 100644
--- a/lib/legacy/zstd_v01.c
+++ b/lib/legacy/zstd_v01.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/legacy/zstd_v01.h b/lib/legacy/zstd_v01.h
index a91c6a133bacc675b25db1654e852b982a5a89b3..42f0897c7d2337cc8505d761b5b082423fc9d1eb 100644
--- a/lib/legacy/zstd_v01.h
+++ b/lib/legacy/zstd_v01.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_V01_H_28739879432
diff --git a/lib/legacy/zstd_v02.c b/lib/legacy/zstd_v02.c
index dc1ec0e7c6789d121838c8d41dd0d12cc427482c..b935a4d180055c12a45ca8de4ba5ca8bbbbe8082 100644
--- a/lib/legacy/zstd_v02.c
+++ b/lib/legacy/zstd_v02.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/legacy/zstd_v02.h b/lib/legacy/zstd_v02.h
index 63cb3b8d578f47866529818bf19d2d09526d5afa..0dde7a63773c5213233fd7740c0e73b1ca204100 100644
--- a/lib/legacy/zstd_v02.h
+++ b/lib/legacy/zstd_v02.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_V02_H_4174539423
diff --git a/lib/legacy/zstd_v03.c b/lib/legacy/zstd_v03.c
index 8257de7e6cd3c81c0e376ee924db6fcec13c8baf..35370dd0ca61d39c12f8840d7a916a923b38083e 100644
--- a/lib/legacy/zstd_v03.c
+++ b/lib/legacy/zstd_v03.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/legacy/zstd_v03.h b/lib/legacy/zstd_v03.h
index e38e0109b13654eec7bc4f02685612277830b12b..b4449e2999e0fe9c017680c694b5d25c1a81451f 100644
--- a/lib/legacy/zstd_v03.h
+++ b/lib/legacy/zstd_v03.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_V03_H_298734209782
diff --git a/lib/legacy/zstd_v04.c b/lib/legacy/zstd_v04.c
index 951561a6cc8ce51f211d2906816425de0b458e26..1b5f6f3b0cdb90290349c64ee51a8dbce71f0405 100644
--- a/lib/legacy/zstd_v04.c
+++ b/lib/legacy/zstd_v04.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/legacy/zstd_v04.h b/lib/legacy/zstd_v04.h
index a7d6623305f25515520243ba3c6031d2fb8467ba..6391631fc4327021188e7acf05973ebc9a33cfdb 100644
--- a/lib/legacy/zstd_v04.h
+++ b/lib/legacy/zstd_v04.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_V04_H_91868324769238
diff --git a/lib/legacy/zstd_v05.c b/lib/legacy/zstd_v05.c
index 4a1d4d4bd93112e6a13187a3a361e315a608a5af..23188f504d38dfc93ee1647fba6ee61f59042ed9 100644
--- a/lib/legacy/zstd_v05.c
+++ b/lib/legacy/zstd_v05.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/legacy/zstd_v05.h b/lib/legacy/zstd_v05.h
index a333bd127bd8932177dfcafaed6baf6c7953e793..b68fd578ee9f08fb7d9c69d8cb640a02cf8bca76 100644
--- a/lib/legacy/zstd_v05.h
+++ b/lib/legacy/zstd_v05.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTDv05_H
diff --git a/lib/legacy/zstd_v06.c b/lib/legacy/zstd_v06.c
index a285a09016f62c3b3b806473b3b99bc683173a53..62683f994a958ea29abb6d89c18856c8f6ac0221 100644
--- a/lib/legacy/zstd_v06.c
+++ b/lib/legacy/zstd_v06.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/legacy/zstd_v06.h b/lib/legacy/zstd_v06.h
index ee043a17909015652b9fbf0de6617572b7082a2b..fb4eb37c89e2c1f04866bb026e34899676eb8b1f 100644
--- a/lib/legacy/zstd_v06.h
+++ b/lib/legacy/zstd_v06.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTDv06_H
diff --git a/lib/legacy/zstd_v07.c b/lib/legacy/zstd_v07.c
index ad392e90b61e4de82d2081229f7920b39c095419..aad9b1f659f8126b805ee284d4420b145bf56992 100644
--- a/lib/legacy/zstd_v07.c
+++ b/lib/legacy/zstd_v07.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/lib/legacy/zstd_v07.h b/lib/legacy/zstd_v07.h
index 68d18e9636bf3ccfeb4434d613382b599c9e6f79..6591cd3014b07bf850d6d1c4499a907cea34859a 100644
--- a/lib/legacy/zstd_v07.h
+++ b/lib/legacy/zstd_v07.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTDv07_H_235446
diff --git a/lib/zstd.h b/lib/zstd.h
index e69702f69610ff67e31a2e3d973af98a8ca10ef5..8817ef94542b18cfc34808ce7d38df6db3c7c4b1 100644
--- a/lib/zstd.h
+++ b/lib/zstd.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 #if defined (__cplusplus)
 extern "C" {
diff --git a/programs/bench.c b/programs/bench.c
index d5c04c6981db095170ac6d1b577ab4c4b5947e42..a691f7313d0d873a5cdf2ae86070b3f3dfcd925a 100644
--- a/programs/bench.c
+++ b/programs/bench.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/programs/bench.h b/programs/bench.h
index 5f8d61a25b30f285e5ed6a58e46d3edea7d6f6cc..860d1ab2154881031f2102ff106d5c80b7028f4e 100644
--- a/programs/bench.h
+++ b/programs/bench.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/programs/datagen.c b/programs/datagen.c
index b1da8e78b31e8e963f9f7d2cbd1b26f2379f1844..a489d6af08d785559df0016906db68fcd61ccb49 100644
--- a/programs/datagen.c
+++ b/programs/datagen.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/programs/datagen.h b/programs/datagen.h
index 5b1b7c47cc5deac400e48eb06212ea274b947fc2..2fcc980e5e76b0826412f75591a51d44d0fd5ce6 100644
--- a/programs/datagen.h
+++ b/programs/datagen.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/programs/dibio.c b/programs/dibio.c
index ab2dc285a2730630cdee05b8a2b5696790271703..ffc78451d28be2363d2abd288bf58435eec9a7f6 100644
--- a/programs/dibio.c
+++ b/programs/dibio.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/programs/dibio.h b/programs/dibio.h
index 0227239b26db5eaa29959a003e8d97f2aee48951..ac242449152d3861491bab698c103af03f9883dd 100644
--- a/programs/dibio.h
+++ b/programs/dibio.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 /* This library is designed for a single-threaded console application.
diff --git a/programs/fileio.c b/programs/fileio.c
index 65b4c757919462cd9cd5bdcfa8c272c39c44d757..e8aba4b5268e8d4cb8c157fbcf4320d78ea04cb2 100644
--- a/programs/fileio.c
+++ b/programs/fileio.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/programs/fileio.h b/programs/fileio.h
index 8008e97dd5f38ceadb6d5717272f51e4391a7e77..748103685e06cf395d995b8419acd14113c683dd 100644
--- a/programs/fileio.h
+++ b/programs/fileio.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/programs/platform.h b/programs/platform.h
index e9629a0fa05c1e5952f83ae1ca07293554187476..a4d7850fd714113d3217baeb92ba141e44de8ae5 100644
--- a/programs/platform.h
+++ b/programs/platform.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef PLATFORM_H_MODULE
diff --git a/programs/util.h b/programs/util.h
index 384dec1bdd3806e25d037f93f927b8be13071ee0..e79fab42d580218c1d9b567309d8af0c07f83ef3 100644
--- a/programs/util.h
+++ b/programs/util.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef UTIL_H_MODULE
diff --git a/programs/zstdcli.c b/programs/zstdcli.c
index e7eb71db6e3783d61ea6b06b482c1c04c2faf0af..c5f7f578d510f869784f62a12e47fbc6115e4d2b 100644
--- a/programs/zstdcli.c
+++ b/programs/zstdcli.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/datagencli.c b/tests/datagencli.c
index bf9601f20976eb4e12dde809d3484b446b5d3957..4814974e27f5b82d5f3b4654276e7b9b71ca2bc4 100644
--- a/tests/datagencli.c
+++ b/tests/datagencli.c
@@ -1,10 +1,11 @@
 /*
- * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/decodecorpus.c b/tests/decodecorpus.c
index 23166bd67f0a733d8766aac9132ff88498c2771b..a06571328a1df692d6369145e238a44777094bf0 100644
--- a/tests/decodecorpus.c
+++ b/tests/decodecorpus.c
@@ -1,10 +1,11 @@
 /*
- * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * Copyright (c) 2017-present, Yann Collet, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #include <limits.h>
diff --git a/tests/fullbench.c b/tests/fullbench.c
index 78a70940f9d2572b5e215289bb59cc7c8b1dbf21..2361debf88a8d10fd3a835d397560c520706831f 100644
--- a/tests/fullbench.c
+++ b/tests/fullbench.c
@@ -1,10 +1,11 @@
 /*
- * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/fuzzer.c b/tests/fuzzer.c
index b2349870570fb2fef2608c7d248052f01dc9eb7e..108eeaf48b76cf108e6621f04380d491d43fb66b 100644
--- a/tests/fuzzer.c
+++ b/tests/fuzzer.c
@@ -1,10 +1,11 @@
 /*
- * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/invalidDictionaries.c b/tests/invalidDictionaries.c
index 83fe439d4c43461cea96a20ce6a06088a14f38c9..b23db036f4892ecace818dfc20d37914af3487e7 100644
--- a/tests/invalidDictionaries.c
+++ b/tests/invalidDictionaries.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #include <stddef.h>
diff --git a/tests/legacy.c b/tests/legacy.c
index 962b2c9c3c9d9720740a33a336b4b22a5ffd2cb5..46a8206c4422e66c46070a1fabf10961679b94a2 100644
--- a/tests/legacy.c
+++ b/tests/legacy.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 /*
diff --git a/tests/longmatch.c b/tests/longmatch.c
index ef79337f56d54fef8dafeba096043c16a16071c8..ed3861571d9b7aae1a8f3fbfb19560dd609ce739 100644
--- a/tests/longmatch.c
+++ b/tests/longmatch.c
@@ -1,10 +1,11 @@
 /*
- * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * Copyright (c) 2017-present, Yann Collet, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/namespaceTest.c b/tests/namespaceTest.c
index 6f6c74fd63d9f63c0a0e74685865c66194645196..5b7095f67c80ab0c4313d6b4b3579ae9581ea3f0 100644
--- a/tests/namespaceTest.c
+++ b/tests/namespaceTest.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/paramgrill.c b/tests/paramgrill.c
index c39434998850f8ca7c882d9ba39cbf31c2d71e0a..1bc48f401593f1729a2541bbe55dc338dbacffb3 100644
--- a/tests/paramgrill.c
+++ b/tests/paramgrill.c
@@ -1,10 +1,11 @@
 /*
- * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/poolTests.c b/tests/poolTests.c
index f3d5c382ae5798e8d2122261163c1956b74a66ce..00ee830154c9981e0516a64f4fd4c52645f1479f 100644
--- a/tests/poolTests.c
+++ b/tests/poolTests.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/roundTripCrash.c b/tests/roundTripCrash.c
index f17f2f33feb4b5ae7899af2e385e51d1a6b5f32a..180fa9b6f6dcdc1459ea2605016414ca089ef93e 100644
--- a/tests/roundTripCrash.c
+++ b/tests/roundTripCrash.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 /*
diff --git a/tests/symbols.c b/tests/symbols.c
index f08542dbf669c19cce2dc47db97eb02763becbbc..c0bed2e5d96e90e58981bfa4368b5e5b918b88fd 100644
--- a/tests/symbols.c
+++ b/tests/symbols.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/zbufftest.c b/tests/zbufftest.c
index fe08fdab5bed7bdf6b8fd85d89fb29a2a55a62b0..e64c886a5e752ee041d205b141921ec6bc68cd92 100644
--- a/tests/zbufftest.c
+++ b/tests/zbufftest.c
@@ -1,10 +1,11 @@
 /*
- * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
  * All rights reserved.
  *
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/tests/zstreamtest.c b/tests/zstreamtest.c
index 1f3aeea4cfd8de875b10db3cf8725d0b1fcc2978..d7b2e197a9a510022edbc42710f68318b1f55f71 100644
--- a/tests/zstreamtest.c
+++ b/tests/zstreamtest.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/zlibWrapper/gzcompatibility.h b/zlibWrapper/gzcompatibility.h
index 98ddf1f114a4a612c98cc1e64c0e4e0e9771f69d..ea8d50c8238adae04f9308eadafdcc87ae1b56a0 100644
--- a/zlibWrapper/gzcompatibility.h
+++ b/zlibWrapper/gzcompatibility.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/zlibWrapper/zstd_zlibwrapper.c b/zlibWrapper/zstd_zlibwrapper.c
index 836587f2b12510b780543b663eec8111abd35293..c5fbdf98e19db3a825176c18d7e6f599fd67d131 100644
--- a/zlibWrapper/zstd_zlibwrapper.c
+++ b/zlibWrapper/zstd_zlibwrapper.c
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 
diff --git a/zlibWrapper/zstd_zlibwrapper.h b/zlibWrapper/zstd_zlibwrapper.h
index 9c923cb18386d4dfea90930de0eaca1ede7eaf55..f828d3191b87a96eb854c8a6ad165df6f96b2e3e 100644
--- a/zlibWrapper/zstd_zlibwrapper.h
+++ b/zlibWrapper/zstd_zlibwrapper.h
@@ -5,6 +5,7 @@
  * This source code is licensed under both the BSD-style license (found in the
  * LICENSE file in the root directory of this source tree) and the GPLv2 (found
  * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
  */
 
 #ifndef ZSTD_ZLIBWRAPPER_H