1 files changed, 1 insertions, 1 deletions
diff --git a/vm.c b/vm.c
index c6c972032e..c467882323 100644
--- a/vm.c
+++ b/vm.c
@@ -1988,7 +1988,7 @@ ruby_thread_init(VALUE self)
 
     th->vm = vm;
     th_init(th, self);
-    rb_iv_set(self, "locals", rb_hash_new());
+    rb_ivar_set(self, rb_intern("locals"), rb_hash_new());
 
     th->top_wrapper = 0;
     th->top_self = rb_vm_top_self();