Wis. Stat. § 24.35

Whenever the board shall have erroneously or improperly issued any certificate or patent for any public lands, whereby wrong or injustice has been or may be done, including cases where the state had no title to the lands, or its title has failed, it may, upon the written application of the purchaser, or the purchaser's successor in interest revoke and annul such certificate or patent by its order, which with such application, shall be filed and recorded in its office. A certified copy of such order may be recorded in the office of the register of deeds for the county where such lands lie, and thereupon such certificate or patent shall be absolutely null and void. When such order is so recorded there shall be paid out of the state treasury, from the fund to which it has been credited, to the purchaser, or the purchaser's successor in interest the amounts in the manner and as provided in s. 24.34 .