suPHP w/ apache2 wont reload, why am I getting this error?

<VirtualHost 162.xxx.xxx.xx:80>
    ServerName X.com
    ServerAlias www.X.com
    DocumentRoot /var/www/html
    <IfModule mod_suphp.c>
        suPHP_UserGroup root root
    </IfModule>
</VirtualHost>

are my settings … why does it give this error:

root@X:~# service apache2 reload
 * Reloading web server apache2                                                                                                             *
 * The apache2 configtest failed. Not doing anything.
Output of config test was:
AH00526: Syntax error on line 6 of /etc/apache2/sites-enabled/000-default.conf:
Invalid command 'suPHP_UserGroup', perhaps misspelled or defined by a module not included in the server configuration
Action 'configtest' failed.
The Apache error log may have more information.