Excluded featured from main category query

gistfile1.aw

<?php

function be_exclude_category_featured( $query ) {
	if( $query->is_main_query() && $query->is_category() ) {
		$meta_query = array(
			array(
				'key' => 'be_category_featured',
				'value' => 'on',
				'compare' => '!='
		);
		$query->set( 'meta_query', $meta_query );
	}
}
add_action( 'pre_get_posts', 'be_exclude_category_featured' );