diff --git a/src/plainui/jinja2/plainui/event.html.j2 b/src/plainui/jinja2/plainui/event.html.j2
index b47091dc2dd93369bea23a0815cc51c24442a090..70ab95da53844e25a590c9c9fe1673abb937ab73 100644
--- a/src/plainui/jinja2/plainui/event.html.j2
+++ b/src/plainui/jinja2/plainui/event.html.j2
@@ -33,9 +33,11 @@
         <li class="breadcrumb-item">
           <a href="{{ url('plainui:index') }}">{{ conf.name }}</a>
         </li>
-        <li class="breadcrumb-item">
-          <a href="{{ url('plainui:assemblies') }}">{{ _("assemblies") }}</a>
-        </li>
+        {% if not assembly.is_official %}
+          <li class="breadcrumb-item">
+            <a href="{{ url('plainui:assemblies') }}">{{ _("assemblies") }}</a>
+          </li>
+        {% endif %}
         <li class="breadcrumb-item">
           <a href="{{ url('plainui:assembly', assembly_slug=assembly.slug) }}">{{ assembly.name }}</a>
         </li>