diff --git a/nixos/modules/services/misc/packagekit.nix b/nixos/modules/services/misc/packagekit.nix
index 2d1ff7bb4117..bce21e8acff3 100644
--- a/nixos/modules/services/misc/packagekit.nix
+++ b/nixos/modules/services/misc/packagekit.nix
@@ -6,11 +6,8 @@ let
 
   cfg = config.services.packagekit;
 
-  backend = "nix";
-
   packagekitConf = ''
 [Daemon]
-DefaultBackend=${backend}
 KeepCache=false
     '';