public static function flushRewriteRules() {

			$tec = self::instance();

			// reregister custom post type to make sure slugs are updated
			$tec->post_type_args['rewrite']['slug'] = sanitize_title( $tec->getRewriteSlugSingular() );
			register_post_type( self::POSTTYPE, apply_filters( 'tribe_events_register_event_type_args', $tec->post_type_args ) );

			add_action( 'shutdown', 'flush_rewrite_rules' );
		}