1 files changed, 1 insertions, 1 deletions
diff --git a/class.c b/class.c
index 94ddd7ccf5..1f35be413b 100644
--- a/class.c
+++ b/class.c
@@ -914,7 +914,7 @@ move_refined_method(st_data_t key, st_data_t value, st_data_t data)
 
     if (me->def->type == VM_METHOD_TYPE_REFINED) {
 	if (me->def->body.refined.orig_me) {
-	    rb_method_entry_t *orig_me = me->def->body.refined.orig_me, *new_me;
+	    const rb_method_entry_t *orig_me = me->def->body.refined.orig_me, *new_me;
 	    me->def->body.refined.orig_me = NULL;
 	    new_me = rb_method_entry_clone(me);
 	    st_add_direct(tbl, key, (st_data_t) new_me);