diff --git a/templates/cave.html b/templates/cave.html
index 979e4b7..2b65bdd 100644
--- a/templates/cave.html
+++ b/templates/cave.html
@@ -196,6 +196,7 @@
     <p>[<a href="https://aardgoose.github.io/CaveView.js/">CaveView</a> display of the .3d file is temporarily disabled while we fix things (Nov.2021).<br> See <a href="/handbook/computing/todo.rst">/handbook/computing/todo.rst</a>.]<br><br>
     
     Download .3d file <a href="/cave/3d/{{cave}}">caves-{{  cave.area.all.0.kat_area }}/{{cave.kataster_number}}/{{svx3d}}.3d</a>
+    Download .3d file <a href="{% url "cave3d" cave %}">caves-{{  cave.area.all.0.kat_area }}/{{cave.kataster_number}}/{{svx3d}}.3d</a>
 <br>
 cave ID '{{cave.reference}}'<br>
 cave survex path '{{  cave.area.all.0.kat_area }}/{{cave.kataster_number}}'