diff --git a/modules/home/default.nix b/modules/home/default.nix
index b69e1c1..06e3a87 100644
--- a/modules/home/default.nix
+++ b/modules/home/default.nix
@@ -4,6 +4,7 @@
   home-manager = {
     useGlobalPkgs = true;
     useUserPackages = true;
+    backupFileExtension = "bak";
 
     users.atridad = { pkgs, lib, ... }: {
       imports = [