diff --git a/flake.nix b/flake.nix
index 9a78bcc..9b57e39 100644
--- a/flake.nix
+++ b/flake.nix
@@ -55,6 +55,7 @@
             home-manager.useUserPackages = true;
             home-manager.users.leonv = import ./absol/leonv.nix;
             home-manager.extraSpecialArgs = { inherit inputs; };
+            home-manager.backupFileExtension = "backup";
           }
         ];
       };