- rule => sprintf("&TCP_UDP_SERVICE_RANGE(53, %s)", join_spc(filter_ipv4(getfromhash($nodeinfo, 'hoster', 'allow_dns_query')))),
+ rule => sprintf("&TCP_UDP_SERVICE_RANGE(53, (%s))", join_spc(filter_ipv4(getfromhash($nodeinfo, 'hoster', 'allow_dns_query')))),