diff --git a/backup.nix b/backup.nix
index 181a1a2..26e6d8a 100644
--- a/backup.nix
+++ b/backup.nix
@@ -26,8 +26,8 @@ in {
 
     restartIfChanged = false;
     unitConfig.X-StopOnRemoval = false;
+    unitConfig.User = user;
 
-    serviceConfig.User = user;
     serviceConfig.Type = "oneshot";
 
     startAt = "weekly";
@@ -37,7 +37,6 @@ in {
       config.services.postgresql.package
       s3cmd
       coreutils
-      gnutar
       age
     ];