diff --git a/m/tent/gitea.nix b/m/tent/gitea.nix
index 2c5b11f1..dfbe1229 100644
--- a/m/tent/gitea.nix
+++ b/m/tent/gitea.nix
@@ -54,9 +54,10 @@
       WorkingDirectory = cfg.dump.backupDir;
     };
 
-    # gitea dump does not allow overriding files. Instead dump to stdout with -
     script = ''
-      ${exe} dump --type ${cfg.dump.type} --file - >"gitea-dump-$(date +%a).${cfg.dump.type}"
+      name="gitea-dump-$(date +%a).${cfg.dump.type}"
+      ${exe} dump --type ${cfg.dump.type} --file - >"$name.tmp"
+      mv "$name.tmp" "$name"
     '';
   };