1 files changed, 1 insertions, 4 deletions
diff --git a/vm.c b/vm.c
index 93e51dd847..39fb7dc821 100644
--- a/vm.c
+++ b/vm.c
@@ -3638,7 +3638,6 @@ Init_VM(void)
 {
     VALUE opts;
     VALUE klass;
-    VALUE fcore;
 
     /*
      * Document-class: RubyVM
@@ -3664,9 +3663,8 @@ Init_VM(void)
 #endif
 
     /* FrozenCore (hidden) */
-    fcore = rb_class_new(rb_cBasicObject);
+    VALUE fcore = rb_mRubyVMFrozenCore = rb_iclass_alloc(rb_cBasicObject);
     rb_set_class_path(fcore, rb_cRubyVM, "FrozenCore");
-    RBASIC(fcore)->flags = T_ICLASS;
     klass = rb_singleton_class(fcore);
     rb_define_method_id(klass, id_core_set_method_alias, m_core_set_method_alias, 3);
     rb_define_method_id(klass, id_core_set_variable_alias, m_core_set_variable_alias, 2);
@@ -3685,7 +3683,6 @@ Init_VM(void)
     RBASIC_CLEAR_CLASS(klass);
     rb_obj_freeze(klass);
     rb_gc_register_mark_object(fcore);
-    rb_mRubyVMFrozenCore = fcore;
 
     /*
      * Document-class: Thread