diff --git a/src/backoffice/templates/backoffice/moderation_event-detail.html b/src/backoffice/templates/backoffice/moderation_event-detail.html
index 770fec16b8dc0d9731d27d86223e055d23157b7c..f88b560b0cf02c714c7675d35bc1eae618b27135 100644
--- a/src/backoffice/templates/backoffice/moderation_event-detail.html
+++ b/src/backoffice/templates/backoffice/moderation_event-detail.html
@@ -94,8 +94,8 @@
             <dt class="col-sm-3">{% trans "Event__public_speakers" %}:</dt>
             <dd class="col-sm-9">
               {% for speaker in object.public_speakers %}
-                - <a href="{% url "backoffice:moderation-user-detail" pk=speaker.participant.id %}"
-    title="{{ speaker.participant.username }}">{{ speaker.participant.get_display_name }}</a>
+                - <a href="{% url "backoffice:moderation-user-detail" pk=speaker.id %}"
+    title="{{ speaker.username }}">{{ speaker.get_display_name }}</a>
                 <br>
               {% empty %}-/-
               {% endfor %}