Orient midfielder Jason Demetriou went close before Wayne Gray's cross from the right was met by Adam Boyd to head his eighth of the season on 42 minutes.

Cheltenham went close to an equaliser when Steve Gillespie forced an alert diving save from Morris.

Orient went 2-0 up when Demetriou crossed from the left and sub John Melligan scored at the far post with a stooping header with 14 minutes to go.

Leyton Orient: Morris, Purches, Thelwell, Mkandawire, Daniels, Ibehre, Chambers, Terry, Demetriou, Gray (Melligan 62), Boyd.
Subs Not Used: Nelson, Saah, Corden, Barcham.

Goals: Boyd 41, Melligan 76.

Cheltenham: Higgs, Jeremy Gill, Duff, Caines, Wright, Bird (Madjo 74), Sinclair, Lindegaard (Vincent 67), Spencer (D Agostino 88), Gillespie, Connor.
Subs Not Used: Scott P Brown, Gallinagh.

Booked: Caines.

Att: 4,156

Ref: Graham Salisbury (Lancashire).