diff --git a/.github/workflows/lint-helm-chart.yaml b/.github/workflows/lint-helm-chart.yaml
index 5915bee..d96ed95 100644
--- a/.github/workflows/lint-helm-chart.yaml
+++ b/.github/workflows/lint-helm-chart.yaml
@@ -71,7 +71,7 @@ jobs:
         run: |
           changed=$(ct list-changed --config )
           if [[ -n "$changed" ]]; then
-            echo "changed=true" >> $GITHUB_OUTPUT
+            echo "changed=true" >> "$GITHUB_OUTPUT"
           fi
 
       - name: Run chart-testing (lint)