Remove slug with front in custom taxonomy

// Change term link taxonomy article_type
add_filter('term_link', 'npn_change_slug_taxonomy_article_type', 1000, 3);
function npn_change_slug_taxonomy_article_type($url, $term, $taxonomy) {
    if($taxonomy == 'article_type'){
        $term_nicename = $term->slug;
        $url = trailingslashit(get_option( 'home' )) . user_trailingslashit( $term_nicename, 'category' );
    }
    return $url;
}