diff --git a/tests/git-helper.sh b/tests/git-helper.sh
index edf935886..734462689 100755
--- a/tests/git-helper.sh
+++ b/tests/git-helper.sh
@@ -17,10 +17,10 @@ function add_kata_bot_info() {
 }
 
 function rebase_atop_of_the_latest_target_branch() {
-	if [ -n "${TARGET_BRANCH}" ]; then
+	if [[ -n "${TARGET_BRANCH}" ]]; then
 		echo "Rebasing atop of the latest ${TARGET_BRANCH}"
-		if ! git rebase origin/${TARGET_BRANCH}; then
-			if [ -n "${GITHUB_WORKSPACE}" ] ; then
+		if ! git rebase "origin/${TARGET_BRANCH}"; then
+			if [[ -n "${GITHUB_WORKSPACE}" ]] ; then
 				echo "Rebase failed, cleaning up the local repository and exiting"
 				cd "${GITHUB_WORKSPACE}"/..
 				sudo rm -rf "${GITHUB_WORKSPACE}"