diff --git a/common/travis/changed_templates.sh b/common/travis/changed_templates.sh
index e6a4328e3c4..91af1f1a3c1 100755
--- a/common/travis/changed_templates.sh
+++ b/common/travis/changed_templates.sh
@@ -10,7 +10,7 @@ case "$tip" in
 	*)         tip="${tip%% *}" ;;
 esac
 
-base="$(git merge-base FETCH_HEAD "$tip")"
+base="$(git merge-base origin/HEAD "$tip")"
 
 [ $(git rev-list --count "$tip" "^$base") -lt 200 ] || {
 	echo "::error title=Branch out of date::Your branch is too out of date. Please rebase on upstream and force-push."