diff --git a/services/forgejo.nix b/services/forgejo.nix
index c9f19f7..e17d42f 100644
--- a/services/forgejo.nix
+++ b/services/forgejo.nix
@@ -90,6 +90,7 @@ in {
       backupDir = "/var/backup/forgejo";
       interval = "04:15";
       type = "tar.zst";
+      file = "forgejo-dump"; # by default, timestamp is included
     };
   };