diff --git a/notes/代码风格规范.md b/notes/代码风格规范.md
index b1ce8137..dedada7d 100644
--- a/notes/代码风格规范.md
+++ b/notes/代码风格规范.md
@@ -2,5 +2,5 @@
 <!-- GFM-TOC -->
 
 
-- [Twitter Java Style Guide](https://github.com/twitter/commons/blob/master/src/java/com/twitter/common/styleguide.mde)
+- [Twitter Java Style Guide](https://github.com/twitter/commons/blob/master/src/java/com/twitter/common/styleguide.md)
 - [Google Java Style Guide](http://google.github.io/styleguide/javaguide.html)