diff --git a/plugins/calendar/localization/en_US.inc b/plugins/calendar/localization/en_US.inc
index 2a5d2359..43d07922 100644
--- a/plugins/calendar/localization/en_US.inc
+++ b/plugins/calendar/localization/en_US.inc
@@ -182,7 +182,7 @@ $labels['invitationattendlinks'] = "In case your email client doesn't support iT
 $labels['eventupdatesubject'] = '"$title" has been updated';
 $labels['eventupdatesubjectempty'] = 'An event that concerns you has been updated';
 $labels['eventupdatemailbody'] = "*\$title*\n\nWhen: \$date\n\nInvitees: \$attendees\n\nPlease find attached an iCalendar file with the updated event details which you can import to your calendar application.";
-$labels['eventcancelsubject'] = '"$title" has been canceled';
+$labels['eventcancelsubject'] = '"$title" has been cancelled';
 $labels['eventcancelmailbody'] = "*\$title*\n\nWhen: \$date\n\nInvitees: \$attendees\n\nThe event has been cancelled by \$organizer.\n\nPlease find attached an iCalendar file with the updated event details.";
 
 // invitation handling (overrides labels from libcalendaring)
diff --git a/plugins/tasklist/localization/en_US.inc b/plugins/tasklist/localization/en_US.inc
index 2b2db862..7890683b 100644
--- a/plugins/tasklist/localization/en_US.inc
+++ b/plugins/tasklist/localization/en_US.inc
@@ -148,7 +148,7 @@ $labels['invitationmailbody'] = "*\$title*\n\nDue: \$date\n\nAssignees: \$attend
 $labels['itipupdatesubject'] = '"$title" has been updated';
 $labels['itipupdatesubjectempty'] = 'A task that concerns you has been updated';
 $labels['itipupdatemailbody'] = "*\$title*\n\nDue: \$date\n\nAssignees: \$attendees\n\nPlease find attached an iCalendar file with the updated task details which you can import to your tasks application.";
-$labels['itipcancelsubject'] = '"$title" has been canceled';
+$labels['itipcancelsubject'] = '"$title" has been cancelled';
 $labels['itipcancelmailbody'] = "*\$title*\n\nDue: \$date\n\nAssignees: \$attendees\n\nThe task has been cancelled by \$organizer.\n\nPlease find attached an iCalendar file with the updated task details.";
 $labels['saveintasklist'] = 'save in ';