diff --git a/gh-actions/gcs/artefact/sync/action.yml b/gh-actions/gcs/artefact/sync/action.yml
index 9850d65d8..d85ea3811 100644
--- a/gh-actions/gcs/artefact/sync/action.yml
+++ b/gh-actions/gcs/artefact/sync/action.yml
@@ -58,8 +58,10 @@ runs:
- name: Add redirect
if: ${{ steps.paths.outputs.redirect }}
run: |
- echo "" \
- > "${{ steps.paths.outputs.redirect-tmp }}/index.html"
+ {
+ echo ""
+ } > "${{ steps.paths.outputs.redirect-tmp }}/index.html"
echo "Uploading redirect to gs://${{ steps.paths.outputs.redirect }} ..." >&2
gsutil \
-h "Cache-Control:no-cache,max-age=0" \