diff --git a/home/darwin-work.nix b/home/darwin-work.nix
index 530b30a..c841e62 100644
--- a/home/darwin-work.nix
+++ b/home/darwin-work.nix
@@ -23,5 +23,4 @@
   ];
 
   programs.home-manager.enable = true;
-  programs.home-manager.backupFileExtension = "backup";
 }
diff --git a/hosts/dnsc-work/default.nix b/hosts/dnsc-work/default.nix
index 59a19f5..b553da0 100644
--- a/hosts/dnsc-work/default.nix
+++ b/hosts/dnsc-work/default.nix
@@ -175,6 +175,7 @@
   home-manager = {
     extraSpecialArgs = { inherit inputs outputs; };
     useGlobalPkgs = true;
+    backupFileExtension = "backup";
     users = {
       dennis = import ../../home/darwin-work.nix;
     };