Civi's train terminal for Freccibianca

The schedule is out for Oct 12. We will catch the train at Roma Termini, but the options for the Civi station include the following:

Civitavecchia

Civitavecchia Marritima

Anyone know which one I select?

There is only one train station in Civitavecchia. I usually select just plain ol' Civitavecchia.

If it's incorrect, the system will not let you book the ticket.

Thanks for the quick reply. My gut was telling me just to choose the Civi one, too.