STILLWATER, Okla. (AP) — The referee for the Central Michigan-Oklahoma State game admitted that officials mistakenly awarded an untimed final play to the Chippewas, which they used to score a miraculous winning touchdown to beat the Cowboys 30-27 on Saturday.

Oklahoma State was penalized for intentional grounding on its final offensive play, which is a loss of down penalty. Rules state that the game cannot end on an accepted live-ball penalty, referee Tim O’Dey of the Mid-American Conference, CMU’s league, said.

“There’s an exception to the rule that says if enforcement of the foul involves a loss of down, then that brings the game to an end,” O’Dey told a pool reporter after the game.”

He said after conferring with the national rules editor, officials determined the “extension should not have happened.”

Corey Willis scored the winning touchdown after grabbing a lateral from Jesse Kroll at the Oklahoma State 12.

Oklahoma State (1-1) thought it had won when Mason Rudolph threw the ball away on fourth down as the clock expired, but after the officials conferred, they assessed an intentional grounding penalty and gave Central Michigan another play.