Help! I deleted an invoice

Hi All, I just recently changed the billing cycle for a client from monthly to annually. Unfortunately I forgot to change the recurring amount. So their next invoice generated for the year but it still had the monthly amount. I deleted the invoice from the system, but now I'm thinking that wasn't the correct way to fix the problem. What should I do now? How do I get the system to generate another invoice for that product/service?
Thanks,
CJ