diff --git a/modules/doc/application/views/scripts/chapter.phtml b/modules/doc/application/views/scripts/chapter.phtml
index 9147eed06..8cd4f6ec6 100644
--- a/modules/doc/application/views/scripts/chapter.phtml
+++ b/modules/doc/application/views/scripts/chapter.phtml
@@ -1,6 +1,6 @@
 <div class="controls">
-<?= $this->tabs ?>
+    <?= /** @var \Icinga\Web\Widget\Tabs $tabs */ $this->tabs ?>
 </div>
-<div class="content">
+<div class="content chapter">
     <?= /** @var \Icinga\Module\Doc\Renderer\DocSectionRenderer $section */ $section ?>
 </div>