diff --git a/Optimizing-Shadowsocks.md b/Optimizing-Shadowsocks.md
index 28564de..1b0e217 100644
--- a/Optimizing-Shadowsocks.md
+++ b/Optimizing-Shadowsocks.md
@@ -35,7 +35,7 @@ Then:
 
 Warning: **DO NOT ENABLE `net.ipv4.tcp_tw_recycle`!!!** See [this article](http://vincent.bernat.im/en/blog/2014-tcp-time-wait-state-linux.html).
 
-If you use [Supervisor](https://github.com/clowwindy/shadowsocks/wiki/Configure-Shadowsocks-with-Supervisor), Make sure you have the following line in `/etc/default/supervisor`. Once you added that line, restart Supervisor.
+If you use [Supervisor](https://github.com/clowwindy/shadowsocks/wiki/Configure-Shadowsocks-with-Supervisor), Make sure you have the following line in `/etc/default/supervisor`. Once you added that line, restart Supervisor (service stop supervisor && service start supervisor).
 
 ```
 ulimit -n 51200