diff --git a/gc.c b/gc.c
index 6353a7b50a..b0fa670e9e 100644
--- a/gc.c
+++ b/gc.c
@@ -7599,7 +7599,7 @@ gc_is_moveable_obj(rb_objspace_t *objspace, VALUE obj)
                 return FALSE;
             }
         }
-        return !RVALUE_PINNED(obj);
+        return RVALUE_MARKED(obj) && !RVALUE_PINNED(obj);
 
       default:
         rb_bug("gc_is_moveable_obj: unreachable (%d)", (int)BUILTIN_TYPE(obj));