1 files changed, 1 insertions, 1 deletions
diff --git a/vm.c b/vm.c
index acd624d6b2..983b11d5b5 100644
--- a/vm.c
+++ b/vm.c
@@ -2066,7 +2066,7 @@ Init_top_self(void)
     rb_define_singleton_method(rb_vm_top_self(), "to_s", main_to_s, 0);
 
     /* initialize mark object array */
-    vm->mark_object_ary = rb_ary_new();
+    vm->mark_object_ary = rb_ary_tmp_new(1);
 }
 
 VALUE *