Two goals in the last two minutes kept MK Dons' automatic promotion dream alive as they edged out 10-man Wycombe.
The Dons dominated the first half but Izale McLeod missed two sitters while Wycombe's Jermaine Easter was sent off for elbowing Dean Lewington.
Substitute Gary Smith rammed in two minutes from the end after Sean O'Hanlon's shot had been well-saved.
And then McLeod skinned Lewis Christon and drilled low inside the far post at the death to seal the victory.
Wycombe: Young, Martin, Stockley, Christon, Golbourne, Torres, Bloomfield, Grant, Oakes, Easter, Mooney.
Subs Not Used: Crooks, Palmer, Gregory, Cadmore, McGleish.
Sent Off: Easter (26).
Booked: Golbourne, Grant, Martin, Bloomfield.
Milton Keynes Dons: Bankole, Lewington, Diallo, O'Hanlon, Jarrett (Hayes 70), Blizzard (Gary Smith 58), Andrews, Edds, Dyer (Knight 69), Platt, McLeod.
Subs Not Used: Harper, Watts.
Goals: Gary Smith 88, McLeod 90.
Ref: A Hall (W Midlands).