diff --git a/fet2020/templates/posts/fet_calendar.ics b/fet2020/templates/posts/fet_calendar.ics
index 792b19c2..4fa6b818 100644
--- a/fet2020/templates/posts/fet_calendar.ics
+++ b/fet2020/templates/posts/fet_calendar.ics
@@ -1,6 +1,6 @@
 BEGIN:VCALENDAR
 VERSION:2.0
-PRODID:http://www.fet.at/
+PRODID:-//FET//FET Kalender//EN
 METHOD:PUBLISH
 X-WR-TIMEZONE:Europe/Vienna
 BEGIN:VTIMEZONE
@@ -19,16 +19,18 @@ DTSTART:19961027T030000
 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
 TZNAME:MEZ
 END:STANDARD
-END:VTIMEZONE {% for event in events %}
+END:VTIMEZONE{% for event in events %}
 BEGIN:VEVENT
-UID:{{event.id}}
+UID:{% now 'Ymd' %}_{{event.id}}@fet.at
 ORGANIZER;CN="Fachschaft Elektrotechnik":MAILTO:service@fet.at
 LOCATION:Vienna
 SUMMARY:{{ event.title }}
-DESCRIPTION:{{ request.scheme }}://{{ request.get_host }}{{ event.url }} {{ even.title }}
+DESCRIPTION:{{ request.scheme }}://{{ request.get_host }}{{ event.url }}
 CLASS:PUBLIC
 DTSTART;TZID=Europe/Vienna:{{ event.event_start|date:'Ymd' }}T{{ event.event_start|time:'His' }}
 DTEND;TZID=Europe/Vienna:{{ event.event_end|date:'Ymd' }}T{{ event.event_end|time:'His' }}
-DTSTAMP;TZID=Europe/Vienna:{{ event.event_start|date:'Ymd' }}T{{ event.event_start|time:'His' }}
-END:VEVENT {% endfor %}
+DTSTAMP;TZID=Europe/Vienna:{% now 'Ymd' %}T{% now 'His' %}
+STATUS:CONFIRMED
+TRANSP:TRANSPARENT
+END:VEVENT{% endfor %}
 END:VCALENDAR
\ No newline at end of file