1 files changed, 4 insertions, 2 deletions
diff --git a/lib/types.nix b/lib/types.nix
index 7a88e1b9e36be..b225119299da1 100644
--- a/lib/types.nix
+++ b/lib/types.nix
@@ -469,8 +469,10 @@ rec {
     # Obsolete alternative to configOf.  It takes its option
     # declarations from the ‘options’ attribute of containing option
     # declaration.
-    optionSet = builtins.throw "types.optionSet is deprecated; use types.submodule instead" "optionSet";
-
+    optionSet = mkOptionType {
+      name = builtins.trace "types.optionSet is deprecated; use types.submodule instead" "optionSet";
+      description = "option set";
+    };
     # Augment the given type with an additional type check function.
     addCheck = elemType: check: elemType // { check = x: elemType.check x && check x; };