diff --git a/handbook/survey/index.htm b/handbook/survey/index.htm
index de3f461f4..d4d19fd65 100644
--- a/handbook/survey/index.htm
+++ b/handbook/survey/index.htm
@@ -85,6 +85,7 @@ Survey Workshop - <a href="/expofiles/presentations/cave_surveying_20130626.pdf"
   </ul>
 	<li>History of  <a href="../website-history.html">CUCC cave data archiving</a>.</li>
     <li>Survey production<a href="../../years/1990/svy2.htm"> in 1990</a></li>
+  <li>Renumbering everything when we get <a href="/handbook/computing/newkataster.html">new Kataster Numbers</a>.  
 	<li>More obscure methods: 
 			<ul>
 			<li>The <a href="lasers.htm">Loser plateau laser fixed points</a></li>