diff --git a/scripts/helmrepo.sh b/scripts/helmrepo.sh
index 1f35147..3820124 100755
--- a/scripts/helmrepo.sh
+++ b/scripts/helmrepo.sh
@@ -41,7 +41,7 @@
 
 echo "Generating repo index"
 
-helm repo index "${REPO_DIR}" --url "${PUBLISH_URL}" --merge
+helm repo index "${REPO_DIR}" --url "${PUBLISH_URL}" --merge index.yaml
 
 echo "Finished, chart repo generated: ${REPO_DIR}"