diff --git a/vendorsetup.sh b/vendorsetup.sh
index 77327b3140e8dd2d7f743118e21158f9f51bd196..e43cab116e275d3a64ac2b728cb19770c2c05ec5 100644
--- a/vendorsetup.sh
+++ b/vendorsetup.sh
@@ -68,6 +68,9 @@ __abandon_tree()
 __patch_tree()
 {
    (
+      export GIT_COMMITTER_NAME=nobody
+      export GIT_COMMITTER_EMAIL=nobody
+
       cd $(gettop)
       local TREE_ID=${B2G_TREE_ID:-$(${B2G_TREEID_SH})}