WYBR/Y-102, an FM station in Big Rapids, Michigan, has drawn a letter of protest from the league for an ad it recently ran. The ad promotes the “Mike and Brian” morning show by picturing the two men dressed in a nun’s habit, folding their hands in prayer-like fashion, with their eyes flipped upwards. The inscription above the picture reads, “Make them Your Morning Habit.”

The league has asked the station manager to withdraw the ad.