diff --git a/app.config.json5.example b/app.config.json5.example
index 96252fe..371afe1 100644
--- a/app.config.json5.example
+++ b/app.config.json5.example
@@ -4,7 +4,7 @@
   appPath: 'apps',
   appName: 'codeflow',
   domain: '*',
-  'mainApp': 'https://kevisual.xiongxiao.me',
+  mainApp: 'https://kevisual.xiongxiao.me',
   postgres: {
     username: 'root',
     host: 'localhost',