KRS 117.385

A voter who spoils or defaces a ballot or marks it erroneously shall return the ballot to an election officer. The election officer shall deliver to the voter another ballot, but no voter may receive more than three (3) ballots including the one originally delivered to the voter. Upon return of a defective ballot, an election officer shall cancel it by writing in ink on the back the word "spoiled." The canceled ballot shall be placed with spoiled ballots to be returned with the election returns.