Tenn. Code Ann. § 7-32-128

Any error, mistake of name, number of lot, amount, or other irregularity may at any time be corrected; and no such levy or assessment shall ever be declared void or invalid by reason of any error, mistake, or irregularity, but the person aggrieved may have the error, mistake, or irregularity corrected by application to the legislative body of the city or town.