diff --git a/spec/focus/nextcloud.nix b/spec/focus/nextcloud.nix
index 01067df3..7b9c3b82 100644
--- a/spec/focus/nextcloud.nix
+++ b/spec/focus/nextcloud.nix
@@ -23,6 +23,7 @@ in {
     config.adminuser = "koishi";
     config.adminpassFile = builtins.toString (pkgs.writeText "password" "initial_password");
     settings.overwriteprotocol = "https";
+    settings.maintenance_window_start = 17;
     settings.default_phone_region = "US";
     settings.default_language = "zh";
     settings.default_locale = "zh_Hans_CN";