The Events Calendar - Exclude Events by Category (pre_get_posts)

exclude-events-by-cat.php

<?php

add_action( 'pre_get_posts', 'exclude_events_category' );
function exclude_events_category( $query ) {
if ( tribe_is_event() && !tribe_is_day() && !is_single() && !is_tax() && !tribe_is_month() ) {
  $query->set( 'tax_query', array(
    array(
      'taxonomy' => TribeEvents::TAXONOMY,
      'field' => 'slug',
      'terms' => array('zoo'),
      'operator' => 'NOT IN'
    )
    )
  );
}
return $query;
}