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-rw-r--r--class.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/class.c b/class.c
index 06a12a4..9868b72 100644
--- a/class.c
+++ b/class.c
@@ -150,7 +150,7 @@ rb_class_detach_module_subclasses(VALUE klass)
static VALUE
class_alloc(VALUE flags, VALUE klass)
{
- NEWOBJ_OF(obj, struct RClass, klass, (flags & T_MASK) | (RGENGC_WB_PROTECTED_CLASS ? FL_WB_PROTECTED : 0));
+ NEWOBJ_OF(obj, struct RClass, klass, (flags & T_MASK) | FL_PROMOTED1 /* start from age == 2 */ | (RGENGC_WB_PROTECTED_CLASS ? FL_WB_PROTECTED : 0));
obj->ptr = ALLOC(rb_classext_t);
RCLASS_IV_TBL(obj) = 0;
RCLASS_CONST_TBL(obj) = 0;