diff --git a/src/pretix/control/templates/pretixcontrol/organizers/customer.html b/src/pretix/control/templates/pretixcontrol/organizers/customer.html
index 34278fd6e..a332fa03a 100644
--- a/src/pretix/control/templates/pretixcontrol/organizers/customer.html
+++ b/src/pretix/control/templates/pretixcontrol/organizers/customer.html
@@ -111,7 +111,7 @@
                                 {% endif %}
                             </td>
                             <td>
-                                {{ m.attendee_name }}
+                                {{ m.attendee_name|default_if_none:"" }}
                             </td>
                             <td>
                                 <div class="quotabox">