diff --git a/assets/extra/header.html b/assets/extra/header.html
index 98ff925f..3249b6cf 100644
--- a/assets/extra/header.html
+++ b/assets/extra/header.html
@@ -18,7 +18,7 @@
     <span class="button" id="toggle-proofs"></span>
 
     <span class="right">
-      <a href="../">Project Page</a>
+      <a href="./">Project Page</a>
       <a href="./indexpage.html"> Index </a>
       <a href="./toc.html"> Table of Contents </a>
     </span>