diff --git a/docs/reflect.md b/docs/reflect.md
index 3490201..7d1d211 100644
--- a/docs/reflect.md
+++ b/docs/reflect.md
@@ -341,7 +341,7 @@ const type = Object.prototype.toString.call(youngest);
 // 新写法
 const youngest = Reflect.apply(Math.min, Math, ages);
 const oldest = Reflect.apply(Math.max, Math, ages);
-const type = Reflect.apply(Object.prototype.toString, youngest);
+const type = Reflect.apply(Object.prototype.toString, youngest, []);
 ```
 
 ### Reflect.defineProperty(target, propertyKey, attributes)