diff --git a/home/default.nix b/home/default.nix
index 6f35d225..d4ee6551 100644
--- a/home/default.nix
+++ b/home/default.nix
@@ -3,6 +3,7 @@
     home-manager.nixosModules.home-manager
   ];
 
+  home-manager.backupFileExtension = "bak";
   home-manager.users."lilith" = {
     imports = [
       ags.homeManagerModules.default