Keytar - why is username appended to the service name for windows?

Just wondering why keytar appends the username to the end of the service name for Windows.
keytar.setPassword(“TERMSRV/”, “test”, “test”);
that creates the service called TERMSRV/ in credential manager when really it should just be TERMSRV/ right?
Am I correct or am I doing something wrong?
Thought I’d ask before making an issue or feature request on Github.