diff --git a/README.md b/README.md
index de8ed589..ae795032 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ no more than 5% on a low-end router (Buffalo WHR-G300N V2 with a 400MHz MIPS CPU
 Installation
 ------------
 
-## Linux
+### Linux
 
 For Unix-like systems, especially Debian-based systems, 
 e.g. Ubuntu, Debian or Linux Mint, you can build the binary like this: