diff --git a/calendar/inc/class.calendar_bo.inc.php b/calendar/inc/class.calendar_bo.inc.php
index d84347ce11..e3d12968d6 100644
--- a/calendar/inc/class.calendar_bo.inc.php
+++ b/calendar/inc/class.calendar_bo.inc.php
@@ -895,8 +895,6 @@ class calendar_bo
 			}
 		}
 		if (!$start) $start = $event['start'];
-		$start_obj = new Api\DateTime($start);
-		$read_start = new Api\DateTime($event_read['start']);
 
 		$events = array();
 		$this->insert_all_recurrences($event,$start,$this->date2usertime($this->config['horizont']),$events);
diff --git a/calendar/inc/class.calendar_boupdate.inc.php b/calendar/inc/class.calendar_boupdate.inc.php
index f3b6faed4d..9d02e0d7dc 100644
--- a/calendar/inc/class.calendar_boupdate.inc.php
+++ b/calendar/inc/class.calendar_boupdate.inc.php
@@ -1182,7 +1182,7 @@ class calendar_boupdate extends calendar_bo
 		// set recur-enddate/range-end to real end-date of last recurrence
 		if ($event['recur_type'] != MCAL_RECUR_NONE && $event['recur_enddate'])
 		{
-			$rrule = calendar_rrule::event2rrule($event, false);
+			$rrule = calendar_rrule::event2rrule($event);
 			$rrule->rewind();
 			$enddate = $rrule->current();
 			do