diff --git a/calendar/setup/tables_update.inc.php b/calendar/setup/tables_update.inc.php
index db11543097..7506d75929 100644
--- a/calendar/setup/tables_update.inc.php
+++ b/calendar/setup/tables_update.inc.php
@@ -2583,7 +2583,7 @@ function calendar_upgrade14_3()
 			$email.'='.$GLOBALS['egw_setup']->db->quote($row['email']),
 		), __LINE__, __FILE__, 'ORDER BY cal_status') as $user)	// order A, T, U, X
 		{
-			if (strpos($user['email'], '@') !== false && $n++) continue;
+			if (strpos($user['email'], '@') !== false && !$n++) continue;
 			$GLOBALS['egw_setup']->db->delete('egw_cal_user', array_intersect_key($user, array_flip(array('cal_id','cal_recur_date','cal_user_type','cal_user_id','cal_status'))));
 		}
 	}