diff --git a/cara/apps/templates/base/index.html.j2 b/cara/apps/templates/base/index.html.j2
index bf7e702f..920e0f0e 100644
--- a/cara/apps/templates/base/index.html.j2
+++ b/cara/apps/templates/base/index.html.j2
@@ -42,7 +42,7 @@
       <br>
       <div class="pr-3"><a href="{{ calculator_prefix }}" role="button" class="btn btn-lg btn-outline-primary"><div class="d-flex d-row"><i class="icon-calculator"></i><span class="pl-2">Calculator</div></a></div>
       <br>
-      <div class="expert_app_button"><a href="https://cara.web.cern.ch/expert-app" role="button" class="btn btn-lg btn-outline-secondary"><div class="d-flex d-row"><i class="icon-expert"></i><span class="pl-2">Expert (beta)</div></a></div>
+      <div class="expert_app_button"><a href="/expert-app" role="button" class="btn btn-lg btn-outline-secondary"><div class="d-flex d-row"><i class="icon-expert"></i><span class="pl-2">Expert (beta)</div></a></div>
     </div>
     <hr width="95%">
   </div>