diff --git a/src/pretix/control/logdisplay.py b/src/pretix/control/logdisplay.py
index 43e4ce1629..456ec819d6 100644
--- a/src/pretix/control/logdisplay.py
+++ b/src/pretix/control/logdisplay.py
@@ -423,6 +423,7 @@ def pretixcontrol_logentry_display(sender: Event, logentry: LogEntry, **kwargs):
         'pretix.voucher.added': _('The voucher has been created.'),
         'pretix.voucher.sent': _('The voucher has been sent to {recipient}.'),
         'pretix.voucher.added.waitinglist': _('The voucher has been created and sent to a person on the waiting list.'),
+        'pretix.voucher.expired.waitinglist': _('The voucher has been set to expire because the recipient removed themselves from the waiting list.'),
         'pretix.voucher.changed': _('The voucher has been changed.'),
         'pretix.voucher.deleted': _('The voucher has been deleted.'),
         'pretix.voucher.redeemed': _('The voucher has been redeemed in order {order_code}.'),