diff --git a/templates/manywallets.html b/templates/manywallets.html
index fdc8fb5..7a61dc4 100644
--- a/templates/manywallets.html
+++ b/templates/manywallets.html
@@ -23,7 +23,7 @@ traced to produce Tunnel or Therion drawings and eventually the final complete c
     <td style="padding:2px">
     {% for survexblock in scanswallet.survexblock_set.all %}
         {% ifchanged survexblock.survexfile.cave %}
-        <a href="/{{survexblock.survexfile.cave.url}}">/{{survexblock.survexfile.cave.url}}</a>
+        <a href="/{{survexblock.survexfile.cave.url}}">/{{survexblock.survexfile.cave.slug}}</a>
         {% endifchanged %}
     
     {% endfor %}