diff --git a/openslides/participant/templates/projector/GroupSlide.html b/openslides/participant/templates/projector/GroupSlide.html
index 90f738743..3de117e95 100644
--- a/openslides/participant/templates/projector/GroupSlide.html
+++ b/openslides/participant/templates/projector/GroupSlide.html
@@ -8,17 +8,15 @@
 {% block content %}
     <div class="item_fullscreen">{{ group }}
         <span>
-        <p><i>{{ group.user_set.all.count }} {% trans "participants" %}:</i></p>
-        <p>
-            {% if group.user_set.all %}
-                {{ group.user_set.all|join:", " }}
-            {% endif %}
-        </p>
+        <p><i>{{ group.user_set.all.count }} {% trans "participants" %}</i></p>
+        {% comment %}
+            TODO: print fullname (not username) of all group users [see #420]
+            <p>
+                {% if group.user_set.all %}
+                    {{ group.user_set.all|join:", " }}
+                {% endif %}
+            </p>
+        {% endcomment %}
         </span>
     </div>
-    
-{% endblock %}
-
-{% block scrollcontent %}
-
 {% endblock %}