diff --git a/contrib/uncrustify_precommit b/contrib/uncrustify_precommit
index 648e6e245..853c8125d 100755
--- a/contrib/uncrustify_precommit
+++ b/contrib/uncrustify_precommit
@@ -2,9 +2,9 @@
 
 # use as .git/hooks/pre-commit
 exec 1>&2
-return 0
+
 RET=0
-changed=$(git diff --cached --name-only)
+changed=$(git diff --cached --name-only | grep -v mustach)
 crustified=""
 
 for f in $changed;