diff --git a/wfvm/default.nix b/wfvm/default.nix
index 7846583..249b623 100644
--- a/wfvm/default.nix
+++ b/wfvm/default.nix
@@ -2,6 +2,6 @@
 
 {
   makeWindowsImage = attrs: import ./win.nix ({ inherit pkgs; } // attrs);
-  layers = (import ./layers { inherit pkgs; });
-  utils = (import ./utils.nix { inherit pkgs; });
+  layers = import ./layers { inherit pkgs; };
+  utils = import ./utils.nix { inherit pkgs; };
 }