I converted trad'l IRA contributions from previous years into a Roth this year. How do I indicate this in Turbo Tax to avoid being penalized for too high income?

I moved $4k from a traditional to Roth this year, and TTax is telling me my income is too high (filing married, separate). That $4k was accumulated over several years and put into a Roth this year. Is there a way to avoid this penalty?