diff --git a/calendar/inc/class.calendar_holiday.inc.php b/calendar/inc/class.calendar_holiday.inc.php
index 67f0d023b6..6ab56f7a55 100755
--- a/calendar/inc/class.calendar_holiday.inc.php
+++ b/calendar/inc/class.calendar_holiday.inc.php
@@ -68,7 +68,7 @@ class calendar_holiday
 		{
 //			echo "Inserting LOCALE='".$holiday['locale']."' NAME='".$holiday['name']."' extra=(".$holiday['mday'].'/'.$holiday['month_num'].'/'.$holiday['occurence'].'/'.$holiday['dow'].'/'.$holiday['observance_rule'].")<br>\n";
 			$sql = 'INSERT INTO phpgw_cal_holidays(locale,name,mday,month_num,occurence,dow,observance_rule) '
-					. "VALUES('".$holiday['locale']."','".$holiday['name']."',".$holiday['mday'].','.$holiday['month_num'].','.$holiday['occurence'].','.$holiday['dow'].','.intval($holiday['observance_rule']).")";
+					. "VALUES('".strtoupper($holiday['locale'])."','".$holiday['name']."',".$holiday['mday'].','.$holiday['month_num'].','.$holiday['occurence'].','.$holiday['dow'].','.intval($holiday['observance_rule']).")";
 		}
 		$this->db->query($sql,__LINE__,__FILE__);
 	}
@@ -308,7 +308,6 @@ class calendar_holiday
 		return $holidays;
 	}
 	
-
 	function find_date($date)
 	{
 		global $phpgw;