exclude category in fullcalendar

/*
where 17 is the event categories ID
*/
function em_wpfullcalendar_category_label1($taxonomy_args,$taxonomy){
 if ( $taxonomy->name == 'event-categories'){
  $taxonomy_args['exclude'] = '17';
 }
 return $taxonomy_args;
}
add_filter('wpmfc_calendar_taxonomy_args','em_wpfullcalendar_category_label1',1,2);