query fout

He,
ik heb deze query

mysql_query("UPDATE users)users SET vip=".$update." WHERE username=".$username."") or die(mysql_error());

en deze error

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near )users SET vip=1 WHERE username=smiegles at line 1

weet iemand het probleem?

UPDATE users)users SET
Dat werkt dus niet

mysql_query("UPDATE users SET vip=".$update." WHERE username=".$username."") or die(mysql_error());