Ibehre pounced after Sol Davis had mis-kicked Paul Terry's cross into his path, firing in off the crossbar.

Orient had dominated early on with skipper Stephen Purches shooting wide and keeper Dean Brill denying Ibehre.

Luton could not muster a shot on target until Calvin Andrew's 56th-minute effort was saved by Stuart Nelson, who also kept out Paul Furlong's header.

Luton: Brill, Emanuel, Davis, Keane, Beavan, Morgan, Bell (Furlong 68), Robinson, Spring, Parkin, Andrew.
Subs Not Used: Beresford, Goodall, Perry, Talbot.

Booked: Emanuel, Robinson.

Leyton Orient: Nelson, Purches, Saah, Oji, Palmer, Chambers, Gray, Terry, Demetriou, Ibehre, Boyd (Thornton 81).
Subs Not Used: Thelwell, Melligan, Corden, Mkandawire.

Booked: Demetriou, Gray, Oji.

Goals: Ibehre 26.

Att: 6,412

Ref: Phil Joslin (Nottinghamshire).