private function loadFilterController(ContainerBuilder $container)
    {
        $definition = new Definition('Behat\Behat\Gherkin\Cli\FilterController', array(
            new Reference(self::MANAGER_ID)
        ));
        $definition->addTag(CliExtension::CONTROLLER_TAG, array('priority' => 700));
        $container->setDefinition(CliExtension::CONTROLLER_TAG . '.gherkin_filters', $definition);
    }