diff --git a/conf/app.ini b/conf/app.ini
index 24a2065..ca1f529 100644
--- a/conf/app.ini
+++ b/conf/app.ini
@@ -1,3 +1,5 @@
+; WARNING: Don't edit this file. All change will be removed after each app upgrade
+
 ;https://github.com/go-gitea/gitea/blob/release/v1.20/custom/conf/app.example.ini
 APP_NAME = Gitea
 RUN_USER = __APP__