Terminal Server - Licensing Issue

Terminal Server - Licensing Issue

I had to recently demote a domain controller and re-promote it, and in
this process I renamed the domain completely. Now, because I had to rush
this job I overlooked a few things, for instance my primary concern is
that the DC is used as a terminal server. Licensing was installed fine
before but now because of the domain name change, under the "remote
desktop session host configuration" tool it is still showing the old
licensing server e.g. SRV01.contoso.local but the new server is
SRV01.contosobusiness.local therefore putting me in a grace period, do I
have to reinstall the licenses? Is there a way to modify the server name
to reflect the new changes?
I'm using windows server 2008 R2.