tribe_get_events() with tax query

/**
 * Retrieve all events between Nov 1 and Nov 30
 * that relate to category my-slug
 */
$events = tribe_get_events(array(
    'start_date' => '2012-11-01',
    'end_date' => '2012-11-30',
    'posts_per_page' => 20,
    'eventDisplay' => 'all',
    'tax_query' => array(array(
        'taxonomy' => TribeEvents::TAXONOMY,
        'field' => 'slug',
        'terms' => 'my-slug'))
));