diff --git a/_includes/base/header.html b/_includes/base/header.html
index eb15edfd..d90e5aa7 100644
--- a/_includes/base/header.html
+++ b/_includes/base/header.html
@@ -14,7 +14,7 @@
         </nav>
 
         {% if page.main_page %}
-        <a href="/demo.html" class="inline-flex items-center bg-gray-100 ml-2 border-0 py-1 px-3 focus:outline-none hover:bg-gray-200 rounded text-base mt-4 md:mt-0">
+        <a href="demo" class="inline-flex items-center bg-gray-100 ml-2 border-0 py-1 px-3 focus:outline-none hover:bg-gray-200 rounded text-base mt-4 md:mt-0">
         Open demo
       </a> {% endif %}
     </div>