$query variable used totally undefined in boost.module

Hi guys,

There is a place in the boost.module that uses a variable named $query that's totally undefined (Line ~4725, function boost_boost_menu_router)

  // Try populating with the query string
  if (empty($router_item['page_type'])) {
    $router_item['page_type'] = $query;
  }
  elseif (empty($router_item['page_id'])) {
    $router_item['page_id'] = $query;
  }

FYI notice: Undefined variable: query in /usr/clients/www/drupal/sites/all/modules/boost/boost.module on line 4717.

Thank you.
Alexis