Striker back with U's after finishing loan spell with a goal.
Jabo grabbed the first for the Lancashire side against Doncaster Rovers as they drew 2-2, with former U's defender George Elokobi scored the other.
The powerful forward will now return to the U's, having played twelve games for Oldham, scoring twice.
Elsewhere, Dan Holman had a free weekend with Aldershot not in action, whilst Billy Roast played ninety minutes for Hornchurch as they slipped to a 1-0 home defeat against Wingate & Finchley.
Dom Smith was an unused sub in that match, as the Urchins slipped back into the bottom three.