diff --git a/expert.html b/expert.html
index 2104dd5..3b93fec 100644
--- a/expert.html
+++ b/expert.html
@@ -115,7 +115,7 @@ $().ready(function(){
     <a href ="javascript:goFor()"><img class="navbutton" src="images/fastforward.png" title="fastforward"></a>
   </div>
   <div style="float:right;">
-    <a href="http://visual6502.org/wiki/index.php?title=JssimUserHelp" target="_blank">User Guide</a>
+    <a href="https://web.archive.org/web/20210608195625/http://visual6502.org/wiki/index.php?title=JssimUserHelp" target="_blank">User Guide</a>
     &nbsp;
   </div>
 </div>  <!-- buttons -->