diff --git a/docs/promise.md b/docs/promise.md
index 46af4b0..0594c21 100644
--- a/docs/promise.md
+++ b/docs/promise.md
@@ -242,8 +242,7 @@ p.then((val) => console.log("fulfilled:", val))
   .catch((err) => console.log("rejected:", err));
 
 // 等同于
-
-p.then((val) => console.log(fulfilled:", val))
+p.then((val) => console.log("fulfilled:", val))
   .then(null, (err) => console.log("rejected:", err));
 ```