diff --git a/calendar/inc/class.calendar_ical.inc.php b/calendar/inc/class.calendar_ical.inc.php
index 56f375c1a4..d47f284e5e 100644
--- a/calendar/inc/class.calendar_ical.inc.php
+++ b/calendar/inc/class.calendar_ical.inc.php
@@ -794,7 +794,7 @@ class calendar_ical extends calendar_boupdate
 					$attributes['X-EPOCAGENDAENTRYTYPE'] = 'ANNIVERSARY';
 					$attributes['DTEND'] = $attributes['DTSTART'];
 				}
-				elseif ($event['special'] == '2')
+				elseif ($event['special'] == '2' || !empty($event['whole_day']))
 				{
 					$attributes['X-EPOCAGENDAENTRYTYPE'] = 'EVENT';
 				}