diff --git a/docs/iterator.md b/docs/iterator.md
index 67b883c..60d193d 100644
--- a/docs/iterator.md
+++ b/docs/iterator.md
@@ -363,7 +363,7 @@ let arr = ['b', 'c'];
 let arr = [...iterable];
 ```
 
-**（3）yield\* **
+**（3）yield\***
 
 `yield*`后面跟的是一个可遍历的结构，它会调用该结构的遍历器接口。