Fabian Ruiz's second-half strike secured a 1-0 win for Paris St Germain at Toulouse on Saturday, extending the visitors' unbeaten run as well as their lead at the top of Ligue 1.
The Parisians, who have not lost in the league all season, top the table with 56 points from 22 games, 10 ahead of second-placed Olympique de Marseille.
Khvicha Kvaratskhelia, Lee Kang-In, Desire Doue and Lucas Hernandez all had chances to break the deadlock in the first half as Toulouse struggled to find their rhythm.
The visitors finally found the net seven minutes after the break when Willian Pacho's header hit the crossbar and the rebound fell to Fabian Ruiz, who slotted home from close range.
PSG, who won the first leg of their Champions League tie against Brest 3-0 on Tuesday, will meet their French opponents again on Wednesday in the return.