diff --git a/init_data.json.template b/init_data.json.template
index ce851d85..dedd8b8a 100644
--- a/init_data.json.template
+++ b/init_data.json.template
@@ -434,7 +434,7 @@
       "isTopGroup": true,
       "title": "",
       "key": "",
-      "children": "",
+      "children": [],
       "isEnabled": true
     }
   ],