diff --git a/src/typing/generic.ml b/src/typing/generic.ml
index ba94b7bb2a6..c1645486098 100644
--- a/src/typing/generic.ml
+++ b/src/typing/generic.ml
@@ -254,7 +254,8 @@ let rec build_generic_class ctx c p tl =
 			| NoClosure | NullSafety
 			| Pure
 			| Struct | StructInit
-			| Using ->
+			| Using
+			| Unreflective ->
 				true
 			| _ ->
 				false