diff --git a/tests/calendar.ics b/tests/calendar.ics
index b54e00b..35eeb61 100644
--- a/tests/calendar.ics
+++ b/tests/calendar.ics
@@ -311,4 +311,18 @@ CLASS:PUBLIC
 CREATED:20230719T153023Z
 LAST-MODIFIED:20230719T153034Z
 END:VEVENT
+BEGIN:VEVENT
+UID:be6dd0e3ca1bb6a44783ade61056b12c57325b5f
+DTSTAMP:20230819T152822Z
+DTSTART;TZID=/freeassociation.sourceforge.net/Europe/Berlin:
+ 20240131T080000
+DTEND;TZID=/freeassociation.sourceforge.net/Europe/Berlin:
+ 20240131T100000
+SEQUENCE:3
+SUMMARY:do laundry
+TRANSP:OPAQUE
+CLASS:PUBLIC
+CREATED:20230819T153023Z
+LAST-MODIFIED:20230819T153034Z
+END:VEVENT
 END:VCALENDAR