diff --git a/.gitea/limbo_actions/buildkit-build-push/action.yaml b/.gitea/limbo_actions/buildkit-build-push/action.yaml
index c338d69..8f8bc04 100644
--- a/.gitea/limbo_actions/buildkit-build-push/action.yaml
+++ b/.gitea/limbo_actions/buildkit-build-push/action.yaml
@@ -76,7 +76,7 @@ runs:
         OUTPUT_NAMES=""
         while IFS= read -r tag; do
             OUTPUT_NAMES="${OUTPUT_NAMES:+$OUTPUT_NAMES,}name=$tag"
-        done <<< "$TAGS"
+        done <<< "${{ inputs.tags }}"
         echo "output names: $OUTPUT_NAMES"
 
         echo "build and push image to ${{ inputs.registry_addr }}"