diff --git a/README.md b/README.md
index 6cd3b18..2e409e7 100644
--- a/README.md
+++ b/README.md
@@ -112,7 +112,7 @@ local handler and the tunnel handler.
 
 You could do a little magic like this:
 
-```
+```js
 var Dup = {
   write: function (chunk, encoding, cb) {
     this.__my_socket.write(chunk, encoding);