diff --git a/Optimizing-Shadowsocks.md b/Optimizing-Shadowsocks.md
index 599fe46..bdf8c0f 100644
--- a/Optimizing-Shadowsocks.md
+++ b/Optimizing-Shadowsocks.md
@@ -1,6 +1,6 @@
 On Debian 7:
 
-Create /etc/sysctl.d/local.conf with the following content:
+Create `/etc/sysctl.d/local.conf` with the following content:
 
 ```
 fs.file-max = 51200