diff --git a/handbook/survey/l/orthoheight.html b/handbook/survey/l/orthoheight.html
index 5640cf66d..53eb75205 100644
--- a/handbook/survey/l/orthoheight.html
+++ b/handbook/survey/l/orthoheight.html
@@ -20,10 +20,10 @@
 
   <a href="/stations">Troggle report: UTM/G&amp;K entrance data</a><br>
   <a href="/entrances">Troggle report: entrances</a><br><br />
-<a href="coord2.html">GPS and coordinate systems</a><br>
+  <a href="handbook/survey/coord2.html">GPS and coordinate systems</a><br>
 <a href="coord.htm">Basic Coordinate Systems</a>.<br>
 
-<a href="lasers.htm">Geographical fixed points on Loser</a><br>
+  <a href="handbook/survey/lasers.htm">Geographical fixed points on Loser</a><br>
   <a href="/katast.htm">The Austrian Kataster areas</a><br /><br />
   
 <p class="caption">Downloaded 2023-11-28</p>