Registration issue

[CaptainAwesome]

I can't seem to run any queries. I adjusted the config file as follows:

// ****** USERS WITH QUERY RUNNING PERMISSIONS ******
// The users specified here will be allowed to run queries from the control panel.
// See the above entries for more information on the format.
// Please note that the ability to run queries is quite powerful. You may wish
// to remove all user IDs from this list for security reasons.
$config['SpecialUsers']['canrunqueries'] = '<myuserid>';

But every time i go to maintenance>Execute SQL Query i get this:

You are not authorized to execute SQL queries