Bastia lost 2-0 at the Parc des Princes as Paris Saint-Germain's seemingly unstoppable march to a fourth successive Ligue 1 title continued.
Paris Saint-Germain moved 22 points clear at the top of Ligue 1 as first-half goals from Thiago Silva and Maxwell secured a regulation 2-0 victory over Bastia.
The result in the first league match back following the mid-season break extended the reigning champion's unbeaten league run to 29 games as the team canters to a fourth successive title.
Bastia had arrived in the capital bolstered by two wins and a draw in December that had seen it clamber out of the relegation zone.