diff --git a/src/templates/400.html b/src/templates/400.html
index 9d4d467..6e4a7c8 100644
--- a/src/templates/400.html
+++ b/src/templates/400.html
@@ -3,5 +3,6 @@
 {% block content %}
 <article class="error-view">
     <h1>400 Bad request</h1>
+    <p>If you're seeing this page, clear your cache to fix the issue.</p>
 </article>
 {% endblock %}