diff --git a/1-js/06-advanced-functions/09-call-apply-decorators/article.md b/1-js/06-advanced-functions/09-call-apply-decorators/article.md
index 53bd1f0b7..d15a5d8af 100644
--- a/1-js/06-advanced-functions/09-call-apply-decorators/article.md
+++ b/1-js/06-advanced-functions/09-call-apply-decorators/article.md
@@ -319,7 +319,7 @@ func.apply(context, args);
 这是它的最简形式：
 
 ```js
-let wrapper = function() {
+let wrapper = function(func) {
   return func.apply(this, arguments);
 };
 ```