diff --git a/modules/home/default.nix b/modules/home/default.nix
index 8947437..ebf0c98 100644
--- a/modules/home/default.nix
+++ b/modules/home/default.nix
@@ -11,6 +11,7 @@ in {
     home-manager = {
       useGlobalPkgs = true;
       useUserPackages = true;
+      backupFileExtension = ".bak";
       users = {
         "nyxerinys" = import ./nyxerinys;
       };