Forgot to include one of my vendors when processing this year's 1099s, and I already sent in my 1096 to the IRS. What's the best way to correct this?

Hey r/tax - I mistakenly left out one vendor when I sent out my 1099s. I already sent all of those forms and my 1096 to the IRS. My vendor notified me of the error today, so I'm creating a 1099 for her. That said, what's the best way to update this change? Do I need to send in a corrected 1096 with ALL of the 1099s I already sent and the one I forgot? Or just an additional 1096 with only the 1099 that I missed in the first pass?