diff --git a/_includes/sidebar.html b/_includes/sidebar.html
index cdc65bfa..0b91eb29 100644
--- a/_includes/sidebar.html
+++ b/_includes/sidebar.html
@@ -1,5 +1,5 @@
 <div class="sidebar">
-  <header class="sidebar__logo">
+  <header class="sidebar__logo" role="banner">
     <a href="{{ "/" | prepend: site.baseurl }}">Liquid</a>
   </header>
   <nav class="sidebar__nav"> {% assign sections = "basics, tags, filters" | split: ", " %}