Advanced help can be searched as long as user has permission to "search content"

Sorry if I missed something, but appears that advanced help content can be search through Drupal search interface, as long as user has permission to "seach content".

I was able to fix this by implementing hook_menu_alter() in my own module. Maybe this should be added to the Advanced Help module, unless there's a better way:

/**
 * Inplementation of hook_menu_alter().
**/
function MY_MODULE_NAME_menu_alter(&$callbacks) {
	// Override access callback for search advanced help.
	$callbacks['search/advanced_help/%menu_tail']['access callback'] = 'user_access';
	$callbacks['search/advanced_help/%menu_tail']['access arguments'] = array('view advanced help index');
}