diff --git a/src/extensions/prettify.js b/src/extensions/prettify.js
index f71675b..ee43797 100644
--- a/src/extensions/prettify.js
+++ b/src/extensions/prettify.js
@@ -14,7 +14,7 @@
                     if (pre) {
                         return '<pre class="prettyprint linenums" tabIndex="0"><code data-inner="1"';
                     } else {
-                        return '<code class="prettyprint">';
+                        return '<code class="prettyprint"';
                     }
                 });
             }}