The Tynecastle side have accepted the two-match ban offered to the striker for violent conduct in Sunday’s Betfred Cup semi-final loss to Celtic.
MacLean clashed with Celtic midfielder Eboue Kouassi, and footage showed him grabbing the Ivorian’s privates as Hearts prepared to take a corner.
The Scottish FA’s Compliance Officer, Clare Whyte, issued a notice of complaint, after three former referees had reviewed the match footage.
Hearts and the player had the chance to argue the case at a disciplinary hearing at Hampden scheduled for Thursday, but MacLean has accepted his punishment.
The charge was likely based on a recent change to the rules which identifies such incidents as violent conduct.
Speaking ahead of the derby, Hearts boss Craig Levein lamented the alteration to the rules, adding: “[Steven] said he’s been doing it for years but I had to chuckle at that.
“I don’t think it was an offence (before), if you know what I mean.
“I’m rueing the fact that they changed the rules this summer, and then it becomes a different offence.
The 36-year-old will miss the visit of Hibs this evening, and Hearts’ next League Cup tie.