Paris Saint-Germain are within touching distance of the Ligue 1 title as they travel to Troyes on Sunday.
Victory will make it four straight domestic successes, and they made a fast start after some horrific defending from the league's basement club.
It was Edinson Cavani's first away goal since December.
Edinson Cavani: Has scored his first league goal away from home since December (vs Nice) #ESTACPSG
— WhoScored.com (@WhoScored) March 13, 2016
PSG doubled their advantage with 18 minutes on the clock, as Javier Pastore latched onto Zlatan Ibrahimovic's cheeky backheel and chipped over the goalkeeper.