diff --git a/scripts/i18n-check.sh b/scripts/i18n-check.sh
index a9cfdfad58b9..c8dfd47f4c95 100755
--- a/scripts/i18n-check.sh
+++ b/scripts/i18n-check.sh
@@ -117,12 +117,12 @@ function main() {
       # Get commit hash from git commit info
       LASTCOMMIT=$(git log -n 1 --pretty=format:%h -- "$f")
     fi
-    if [[ -z $LASTCOMMIT ]] || ! git branch --contains $LASTCOMMIT | grep -q "^\s*main\b"; then
+    if [[ -z $LASTCOMMIT ]] || ! (git branch --contains "$LASTCOMMIT" | grep -q "^\s*main\b"); then
       # Get last commit of `main` that this branch is rooted from.
       LASTCOMMIT=$(git merge-base main HEAD)
     fi
-    if ! git branch --contains $LASTCOMMIT | grep -q "^\s*main\b"; then
-      echo "Something is wrong, the hash isn't on 'main', aborting: $LASTCOMMIT"
+    if ! (git branch --contains "$LASTCOMMIT" | grep -q "^\s*main\b"); then
+      echo "Something is wrong, the hash is empty or isn't on 'main', aborting: $LASTCOMMIT - $f"
       exit 2
     fi