diff --git a/docs/tutorial.md b/docs/tutorial.md
index 922c2a2a..aaaa5187 100644
--- a/docs/tutorial.md
+++ b/docs/tutorial.md
@@ -560,7 +560,7 @@ var CommentBox = React.createClass({
 
 Let's call the callback from the `CommentForm` when the user submits the form:
 
-```javascript{6}
+```javascript{10}
 // tutorial18.js
 var CommentForm = React.createClass({
   handleSubmit: function(e) {