diff --git a/backend/custom_templates.json b/backend/custom_templates.json
index b9f53c9..4973de0 100644
--- a/backend/custom_templates.json
+++ b/backend/custom_templates.json
@@ -31,7 +31,7 @@
     "guest_name_key": "שם האורח",
     "url_button": {
       "enabled": true,
-      "index": 0,
+      "button_index": 0,
       "param_key": "event_id"
     }
   }