diff --git a/README.md b/README.md
index b1ddf56..7641f58 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,8 @@
 -->
 
 # shspec
-```
+```sh
+#!/bin/bash
 describe shspec
   it is a BDD framework for shell
     expect current-shell-support