diff --git a/phpgwapi/inc/class.sessions_db.inc.php b/phpgwapi/inc/class.sessions_db.inc.php
index 0ee5eccfa4..725ec214c5 100644
--- a/phpgwapi/inc/class.sessions_db.inc.php
+++ b/phpgwapi/inc/class.sessions_db.inc.php
@@ -59,6 +59,8 @@
 
 		function register_session($login,$user_ip,$now,$session_flags)
 		{
+			$GLOBALS['phpgw']->db->query("DELETE FROM phpgw_sessions WHERE session_id='$this->sessionsid'",__LINE__,__FILE__);
+
 			$GLOBALS['phpgw']->db->query("INSERT INTO phpgw_sessions VALUES ('" . $this->sessionid
 				. "','".$login."','" . $user_ip . "','"
 				. $now . "','" . $now . "','" . $_SERVER['PHP_SELF'] . "','" . $session_flags