Index: ntopng-2.4/src/Flow.cpp =================================================================== --- ntopng-2.4/src/Flow.cpp +++ ntopng-2.4/src/Flow.cpp 2018-01-31 14:31:20.730112296 +0100 @@ -346,7 +346,7 @@ if(name) { // ntop->getTrace()->traceEvent(TRACE_NORMAL, "[DNS] %s", (char*)ndpiFlow->host_server_name); - if(ndpiFlow->protos.dns.reply_code == 0) { + if(ndpiFlow->protos.dns.ret_code == 0) { if(ndpiFlow->protos.dns.num_answers > 0) { protocol_processed = true;