diff --git a/default.nix b/default.nix
index 275d5aa..79c1614 100755
--- a/default.nix
+++ b/default.nix
@@ -2,7 +2,7 @@
 
 let
   inherit (builtins) toString;
-  inherit (lib.modules) mkDefault;
+  inherit (lib.modules) mkDefault mkIf;
   inherit (lib.my) mapModulesRec';
 in {
   imports =