1 files changed, 4 insertions, 0 deletions
diff --git a/gc.c b/gc.c
index 515fb8cde1..ff8549fad2 100644
--- a/gc.c
+++ b/gc.c
@@ -2432,6 +2432,7 @@ mark_method_entry(rb_objspace_t *objspace, const rb_method_entry_t *me)
     const rb_method_definition_t *def = me->def;
 
     gc_mark(objspace, me->klass);
+  again:
     if (!def) return;
     switch (def->type) {
       case VM_METHOD_TYPE_ISEQ:
@@ -2444,6 +2445,9 @@ mark_method_entry(rb_objspace_t *objspace, const rb_method_entry_t *me)
       case VM_METHOD_TYPE_IVAR:
 	gc_mark(objspace, def->body.attr.location);
 	break;
+      case VM_METHOD_TYPE_REFINED:
+	def = def->body.orig_def;
+	goto again;
       default:
 	break; /* ignore */
     }