diff --git a/index.html b/index.html
index d8d6aaf1..29b8abb3 100644
--- a/index.html
+++ b/index.html
@@ -406,7 +406,7 @@
 <li>FreeBSD</li>
 </ul>
 <h2 id="example-code">Example code</h2>
-<pre><code class="cpp">// Required on Windows
+<pre><code class="c++">// Required on Windows
 ix::initNetSystem();
 
 // Our websocket object
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