--- a/README.md	Sun Oct 23 17:53:32 2016 +0800
+++ b/README.md	Sun Oct 23 18:04:08 2016 +0800
@@ -13,7 +13,8 @@
 
 ## Usage
 
-``lua
+```
+#!lua
 local hglib = require 'hglib'
 local client = hglib.Client.open('.')
 local code, o, e, d = client:runcommand({'log', '-r0'})
@@ -25,7 +26,7 @@
 if #d > 0 then
 	print('Debug: ' .. d)
 end
-``
+```
 
 
 ## Caveats