Access denied for Drupal super user

After installing geouser and navigating to admin/settings/geouser, I get access denied as the Drupal super user.

Adding access arguments to the geouser_menu function solves the problem.

    $items['admin/settings/geouser'] = array(
		'title'	=> t("GeoUser"),
		'description' => t("Retrieve user's geographic information based on her ip address, and display a yahoo map on user page."),
		'page callback'		=> 'drupal_get_form',
		'page arguments'	=> array('geouser_admin_settings'),
                'access arguments' => array('administer site configuration'),
		'file'		=> 'geouser.admin.inc',
    );

Also, I'm not sure it's necessary to explicitly clear the menu cache in your menu hook.