How attribute vulnerabilities to correct FQDN when residing on same IP?

When I scan 2 FQDN’s that reside on the same IP, I can see the scan is taking place correctly against both targets but the results attribute all the vulnerabilities to the first of the 2 FQDN’s. Even looking in the raw xml I can see no field that permits me to map the result back to the correct FQDN. It is only from the vulnerability description that I can tell which belongs to which FQDN. Any advice would be appreciated.