diff --git a/Readme.md b/Readme.md
index 325e402cc0..1e0f868126 100644
--- a/Readme.md
+++ b/Readme.md
@@ -515,7 +515,7 @@ $('li').get().length
 
 Search for a given element from among the matched elements.
 
-```
+```js
 $('.pear').index()
 //=> 2
 $('.orange').index('li')