diff --git a/darwin.nix b/darwin.nix
index 2f0a7a6..5135c8a 100644
--- a/darwin.nix
+++ b/darwin.nix
@@ -64,7 +64,4 @@
       cleanup = "zap";
     };
   };
-
-  # Home Manager
-  home-manager.backupFileExtension = "backup";
 }