diff --git a/index.html b/index.html
index e12c7f0..0c76b08 100644
--- a/index.html
+++ b/index.html
@@ -45,7 +45,7 @@
             <li class="takt focusable">Takt</li>
             <li class="one-piece-flow focusable">One piece flow</li>
             <li class="pull-system focusable">
-              <a href="/pull-system.html">Pull system</a>
+              <a href="/pull-system">Pull system</a>
             </li>
           </ul>
         </section>