I recommend that you do not do anything. I always recommend that a taxpayer accounts for everything that is taxable; however, $10 is a very minor error, and the IRS will probably ignore it. In the worse case, they will send you a letter stating they found the error. They will recalculate the tax and you could owe $2.
Anyways, you can not do anything until they close your return. So, simply let the IRS do their job, and don't really worry about it.