Wis. Stat. § 75.145: Correction of description by action.

Any tax deed issued by a county containing an incomplete, indefinite or incorrect real estate description, and which description follows that set forth in the tax certificate upon which such tax deed issued, may be corrected in an action brought in the circuit court in the same manner as actions for the reformation of instruments. Such deed so corrected shall be valid as of the date of the first issue.