Cesc Fabregas netted his first goal with Monaco to give the struggling principality side their first Ligue 1 win in seven games as they beat visiting Toulouse 2-1 on Saturday.
The Spanish midfielder, who joined from Chelsea last month, fired home in the second half to help Monaco move from 19th to 18th in the standings and claim their first victory at home in the league.
They have 18 points from 23 games and are level on points with 17th-placed Caen, who have a game in hand.
In coach Leonardo Jardim's second game since he returned to the bench after Thierry Henry was sacked last week, Monaco showed some steel.
They opened the scoring after 15 minutes when Aleksandr Golovin latched on to a Gelson Martins cross, only for Christopher Jullien to level five minutes later from close range.
Fabregas, however, restored the advantage with a right-footed strike from the spot that went under the bar in the 62nd minute.
In Jardim's first game in charge earlier this week, Monaco were knocked out of the League Cup semifinals by Guingamp on penalties after a 2-2 draw.