diff --git a/hosts/virt-nix/default.nix b/hosts/virt-nix/default.nix
index 7c9999e..4f2b1f3 100644
--- a/hosts/virt-nix/default.nix
+++ b/hosts/virt-nix/default.nix
@@ -65,6 +65,7 @@ inputs.nixpkgs.lib.nixosSystem {
       };
       nixpkgs.config.allowUnfree = true;
       system.stateVersion = "23.11";
+      home-manager.backupFileExtension = "backup";
 
       gui.enable = true;
       discord.enable = true;