Zoom Scheduler not showing Google Calendar as an option

I am trying to set Zoom Scheduler to sync with my Google Calendar.  When I go to set up it only shows the option to sync to an iCalendar or Outlook.  I have added the Zoom add on to my Google Calendar and it gives an option to set up a Zoom meeting through Google Calendar.  I also get an email notice in my Google Email when a meeting is scheduled through Zoom Scheduler and I can acknowledge and it populates on my Google Calendar.  Is there a trick to get Google Calendar as an option in set up?