diff --git a/lang/en/calendar.php b/lang/en/calendar.php
index d194188117b..5fca2dcad56 100644
--- a/lang/en/calendar.php
+++ b/lang/en/calendar.php
@@ -108,6 +108,7 @@ $string['eventsrelatedtogroups'] = 'Events related to groups';
 $string['eventstarttime'] = 'Start time';
 $string['eventstoexport'] = 'Events to export';
 $string['eventtime'] = 'Time';
+$string['eventtype'] = 'Event type';
 $string['eventview'] = 'Event details';
 $string['eventcalendareventcreated'] = 'Calendar event created';
 $string['eventcalendareventupdated'] = 'Calendar event updated';
@@ -222,8 +223,11 @@ $string['tt_showgroups'] = 'Group events are hidden (click to show)';
 $string['tt_showuser'] = 'User events are hidden (click to show)';
 $string['tue'] = 'Tue';
 $string['tuesday'] = 'Tuesday';
+$string['typeclose'] = 'Close event';
 $string['typecourse'] = 'Course event';
+$string['typedue'] = 'Due event';
 $string['typegroup'] = 'Group event';
+$string['typeopen'] = 'Open event';
 $string['typesite'] = 'Site event';
 $string['typeuser'] = 'User event';
 $string['upcomingevents'] = 'Upcoming events';
@@ -237,6 +241,7 @@ $string['wednesday'] = 'Wednesday';
 $string['weekly'] = 'Weekly';
 $string['weeknext'] = 'Next week';
 $string['weekthis'] = 'This week';
+$string['when'] = 'When';
 $string['yesterday'] = 'Yesterday';
 $string['youcandeleteallrepeats'] = 'This event is part of a repeating event series. You can delete this event only, or all {$a} events in the series at once.';