I would suggest you to simply remove it from the program. You have possibly entered one from last year's filing.
To delete a form in the TurboTax online version:
- Sign in to your account, select Pick up where you left off
- On your left, Select Tax Tools/drop-down menu
- Select Tools
- Under Other helpful links, choose to Delete a form
- Select Delete next to Form 1099-R and Continue with My Return to proceed
