diff --git a/calendar/inc/class.calendar_favorite_portlet.inc.php b/calendar/inc/class.calendar_favorite_portlet.inc.php
index 3d91a6674b..406310225a 100644
--- a/calendar/inc/class.calendar_favorite_portlet.inc.php
+++ b/calendar/inc/class.calendar_favorite_portlet.inc.php
@@ -66,7 +66,8 @@ class calendar_favorite_portlet extends home_favorite_portlet
 			$ui = new calendar_uiviews();
 			if($this->favorite['state']['start']) $ui->search_params['start'] = $this->favorite['state']['start'];
 			if($this->favorite['state']['cat_id']) $ui->search_params['cat_id'] = $this->favorite['state']['cat_id'];
-			if($this->favorite['state']['owner']) $ui->search_params['users'] = explode(',',$this->favorite['state']['owner']);
+			// Owner can be 0 for current user
+			if(array_key_exists('owner',$this->favorite['state'])) $ui->search_params['users'] = explode(',',$this->favorite['state']['owner']);
 			if($this->favorite['state']['filter']) $ui->search_params['filter'] = $this->favorite['state']['filter'];
 			if($this->favorite['state']['sortby']) $ui->search_params['sortby'] = $this->favorite['state']['sortby'];