1 files changed, 2 insertions, 0 deletions
diff --git a/lib/types.nix b/lib/types.nix
index 91b040d24553b..70d22d91b6b51 100644
--- a/lib/types.nix
+++ b/lib/types.nix
@@ -529,6 +529,8 @@ rec {
       getSubOptions = elemType.getSubOptions;
       getSubModules = elemType.getSubModules;
       substSubModules = m: functionTo (elemType.substSubModules m);
+      functor = (defaultFunctor "functionTo") // { wrapped = elemType; };
+      nestedTypes.elemType = elemType;
     };
 
     # A submodule (like typed attribute set). See NixOS manual.