diff --git a/config/examples/example.html b/config/examples/example.html
index 21d7950508..a72220b572 100644
--- a/config/examples/example.html
+++ b/config/examples/example.html
@@ -51,7 +51,7 @@
           <textarea class="hidden" name="html">{{ contents }}</textarea>
           <input type="hidden" name="wrap" value="l">
           <input type="hidden" name="resources" value="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css,https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js,https://cdnjs.cloudflare.com/ajax/libs/ol3/{{ ol_version }}/ol.css,https://cdnjs.cloudflare.com/ajax/libs/ol3/{{ ol_version }}/ol.js">
-          <pre><code id="example-source" class="language-markup">&lt;!-- DOCTYPE html --&gt;
+          <pre><code id="example-source" class="language-markup">&lt;!DOCTYPE html&gt;
 &lt;html&gt;
 &lt;head&gt;
 &lt;title&gt;{{ title }}&lt;/title&gt;