You are on top of it! Once your return is filed, you can file an amended return correcting this information. You will explain in the explanation box, and attach your whole return with the number on it corrected.
However, since you have no change in tax due or refunded, you can probably just sit on this until/unless the IRS sends you a letter, in which case you can immediately reply.
Personally I'd file an amended return and be sure to keep copies of everything...just in case.
