It depends. Did you sign and mail the tax return?
If so, the error is yours and you will be held responsible should the IRS ask questions.
You can file a 1040 X to correct the error. (Amended U.S. Individual Income Tax Return) Allow the IRS 8 to 12 weeks to process the Form 1040 X
At the bottom of the 1040 X http://www.irs.gov/pub/irs-pdf/f1040x.pdf in Part II, there is a place to explain why you are making the changes on your tax return.
Should you need help with this issue, visit, http://taxeswilltravel.com/pdr.htm