diff --git a/tutorial/tutorial.html b/tutorial/tutorial.html
index e9d65c92ad..ca1d8d09c7 100644
--- a/tutorial/tutorial.html
+++ b/tutorial/tutorial.html
@@ -391,7 +391,7 @@
 
 <ul>
 <li>Replace <code>this.props.value</code> with <code>this.state.value</code> inside the <code>&lt;button&gt;</code> tag.</li>
-<li>Replace the <code>() =&gt; alert()</code> event handler with <code>() =&gt; setState({value: &#39;X&#39;})</code>.</li>
+<li>Replace the <code>() =&gt; alert()</code> event handler with <code>() =&gt; this.setState({value: &#39;X&#39;})</code>.</li>
 </ul>
 
 <p>Now the <code>&lt;button&gt;</code> tag looks like this:</p>