EDD SL disable renewal discount for specific product

file.php

<?php // DO NOT COPY THIS LINE
/*
 * Disables renewal discount for specific product
 */

function pw_edd_disable_product_renewal_discount( $renewal_discount, $license_id ) {
	$license = edd_software_licensing()->get_license( $license_id );

    // replace 40 with relevant ID
	if( 40 == $license->download_id ) {
		$renewal_discount = 0;
	}

	return $renewal_discount;
}
add_filter( 'edd_sl_renewal_discount_percentage', 'pw_edd_disable_product_renewal_discount', 10, 2 );