diff --git a/src/Gist/Resources/views/View/embed.html.twig b/src/Gist/Resources/views/View/embed.html.twig
index b1014b6..6f15c78 100644
--- a/src/Gist/Resources/views/View/embed.html.twig
+++ b/src/Gist/Resources/views/View/embed.html.twig
@@ -101,7 +101,7 @@
                     <div class="tab-content">
                         <div id="view" class="tab-pane active in">
                             <div id="viewer">
-                                <pre><code {% if gist.cipher %}data-cipher{% endif %} class="language-{{ gist.highlightType }}">{{ raw_content }}</code></pre>
+                                <pre><code {% if gist.cipher %}data-cipher{% endif %} class="line-numbers language-{{ gist.highlightType }}">{{ raw_content }}</code></pre>
                             </div>
                         </div>
                     </div>