1 files changed, 1 insertions, 1 deletions
diff --git a/gc.c b/gc.c
index 397f73bc80..a49da3219b 100644
--- a/gc.c
+++ b/gc.c
@@ -996,7 +996,7 @@ VALUE
 rb_data_typed_object_alloc(VALUE klass, void *datap, const rb_data_type_t *type)
 {
     if (klass) Check_Type(klass, T_CLASS);
-    return newobj_of(klass, T_DATA, (VALUE)type, (VALUE)1, (VALUE)datap);
+    return newobj_of(klass, T_DATA | type->flags, (VALUE)type, (VALUE)1, (VALUE)datap);
 }
 
 size_t