Remove pages from WordPress search results

// Remove pages from search results
function exclude_pages_from_search($query) {
    if ( $query->is_main_query() && is_search() && !is_admin() ) {
        $query->set( 'post_type', 'post' );
    }
	
    return $query;
}
add_filter( 'pre_get_posts','exclude_pages_from_search' );