diff --git a/lib/types.nix b/lib/types.nix
index 518b987dcd92b..ae482eeef7514 100644
--- a/lib/types.nix
+++ b/lib/types.nix
@@ -73,7 +73,6 @@ let
 
   outer_types =
 rec {
-  __attrsFailEvaluation = true;
   isType = type: x: (x._type or "") == type;
 
   setType = typeName: value: value // {