Celtic are now within touching distance of the SPL title after a 2-0 win at basement boys Livingston.
The Bhoys have been out on their own for much of the season and second half goals from Maciej Zurawski and Shaun Maloney moved them to within one win of the title.
Livi held their own for the first 45 minutes, with Celtic restricted to a couple of chances from Zurawski.
The Pole, who had hit the bar early on, broke the deadlock just two minutes after the restart as he tapped in from close range after being found at the far post by a cross from Maloney.
The goal settled Celtic's nerves and they were awarded a penalty on 52 minutes as Dion Dublin was hauled back by Emmanuel Dorado and Maloney confidently tucked the ball into corner.
Livi tried to bounce back and Derek Adams' cross-shot forced Artur Boruc into action, but they could not find the target and a win for Celtic against Hearts next week will see them crowned champions.
John Robertson's Livingston have a tough task ahead of them if they are to avoid the drop as they trail second-bottom Falkirk by nine points with seven games left.