I am implementing an Admin module, which contains the following routes:

'router' => array(
    'routes' => array(
        'admin' => array(
            'type' => 'Zend\Mvc\Router\Http\Hostname',
            'options' => array(
                'route'    => ':subdomain.mydomain.local',
                'constraints' => array(
                    'subdomain' => 'admin',
                ),
                'defaults' => array(
                    'module'     => '__NAMESPACE__',
                    'controller' => 'Admin\Controller\Index',
                    'action'     => 'index',
                ),
            ),
            'priority' => 9000,
            'may_terminate' => true,
            'child_routes' => array(
                'users' => array(
                    'type' => 'Zend\Mvc\Router\Http\Literal',
                    'options' => array(
                        'route'    => '/users',
                        'defaults' => array(
                            'module'     => '__NAMESPACE__',
                            'controller' => 'Admin\Controller\Users',
                            'action'     => 'index',
                        ),
                    ),
                ),                    
            )  
        ),
    ),
),

And this is the home route configuration:

'home' => array(
            'type' => 'Zend\Mvc\Router\Http\Literal',
            'options' => array(
                'route'    => '/',
                'defaults' => array(
                    'controller' => 'Application\Controller\Index',
                    'action'     => 'index',
                ),
            ),                
        ),

When I try to access to http://admin.mydomain.com, the route match always with the homeroute, but if I remove all the child routes from the admin route, the behavior is correct and a http://admin.mydomain.com matches with the adminroute. Any idea?