diff --git a/modules/home/default.nix b/modules/home/default.nix
index 5d21452..28c419b 100644
--- a/modules/home/default.nix
+++ b/modules/home/default.nix
@@ -3,6 +3,7 @@
     config.home-manager = {
         useGlobalPkgs = true;
         useUserPackages = true;
+        backupFileExtension = "backup";
         users.crow = lib.mkIf config.users.crow.home.enable ./crow/home.nix;
     };
 }