diff --git a/app.ini.tmpl b/app.ini.tmpl
index 0294c3b..049a1e9 100644
--- a/app.ini.tmpl
+++ b/app.ini.tmpl
@@ -8,6 +8,9 @@ NAME = {{ env "GITEA_DB_NAME" }}
 PASSWD = {{ secret "db_passwd" }}
 USER = {{ env "GITEA_DB_USER" }}
 
+[repository]
+DEFAULT_BRANCH = main
+
 [indexer]
 STARTUP_TIMEOUT = 0