diff --git a/demo/karma.yaml b/demo/karma.yaml
index e19d95647..24c47f0de 100644
--- a/demo/karma.yaml
+++ b/demo/karma.yaml
@@ -26,6 +26,7 @@ annotations:
     - help
 custom:
   js: /custom.js
+debug: true
 filters:
   default:
     - "@receiver=by-cluster-service"