diff --git a/.gitea/workflows/render-manifests.yaml b/.gitea/workflows/render-manifests.yaml
index ffe6377fe..e9401a00e 100644
--- a/.gitea/workflows/render-manifests.yaml
+++ b/.gitea/workflows/render-manifests.yaml
@@ -76,7 +76,7 @@ jobs:
             echo ">> Checking for changes ..."
             GIT_DIFF=$(git diff --name-only ${{ gitea.event.before }}..HEAD | xargs -I {} dirname {} | sort -u | grep "clusters/cl01tl/helm/")
 
-            if [ -n $GIT_DIFF ]; then
+            if [ -n "${GIT_DIFF}" ]; then
               echo ">> Changes detected:"
               echo "$GIT_DIFF"
               for path in $GIT_DIFF; do