Buffalo (4-7, 2-5) took the ball to the Northern Illinois 1-yard line in eight plays, but Matt Myers fumbled at the goal line and Demond Taylor Jr. recovered for the Huskies.
The Huskies' needed the extra session after John Richardson missed a 37-yard field goal as time expired. Buffalo tied it at 27 when Alex McNulty made a 55-yard field goal with 1:10 remaining.
Rocky Lombardi threw for 197 yards for Northern Illinois, Trayvon Rudolph ran for 94 yards on three carries and scored once and Ratkovich ran for 75 yards. Rudolph's 75-yard scoring run with 5:17 before halftime pulled the Huskies into a tie at 10.