If you haven't filed yet, go back and change it. If it was on the 1098-T, type 1098-T into the search box and then click the "Jump to 1098-T" link.
If you have filed, let the the return process. It won't affect your tax liability. The IRS may correct the error, or you may get a letter from the IRS asking about it. More than likely the IRS will correct it.
