diff --git a/swh/web/templates/includes/show-metadata.html b/swh/web/templates/includes/show-metadata.html
--- a/swh/web/templates/includes/show-metadata.html
+++ b/swh/web/templates/includes/show-metadata.html
@@ -39,7 +39,7 @@
         {% for swhid_info in swhids_info %}
           <a href="{% url 'api-1-raw-extrinsic-metadata-swhid-authorities' swhid_info.swhid  %}" class="dropdown-item" role="button">
             <i class="{{ swh_object_icons|key_value:swhid_info.object_type.name.lower }} mdi-fw" aria-hidden="true"></i>
-            {{swhid_info.object_type}}
+            {{swhid_info.object_type.name.lower}}
           </a>
         {% endfor %}
       </div>