nameserver reports the wrong host for remote clients of local services

[random-developer]

I've got a nameserver running on host A, and also a service running on the same host is registering itself with:

server = ThreadedServer(MyService, registrar=registrar)

That is, it's taking the default hostname, ":param hostname: the host to bind to. By default, the 'wildcard address' is used to listen on all interfaces."

On host B I am running a client; this client connects to the nameserver of host A to find MyService. It's given the correct port however it's given '127.0.0.1' as the host -- which is obviously wrong when dealing with cross-machine traffic. If I programmatically replace that bad host with the same hostname I used to perform the lookup in the first place I can talk to the service, but I shouldn't need to do that in the client should I?