diff --git a/docs/install.md b/docs/install.md
index 3583d6bf1..f6a0a8e14 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -33,6 +33,8 @@ $ mv /usr/bin/python /usr/bin/python.bak
 $ which python2.7
 /data/server/python27/bin/python2.7
 $ ln -s /data/server/python27/bin/python2.7 /usr/bin/python
+$python
+Python 2.7.13
 ```	
 设置yum默认python用2.6:
 ```