Wales lead 13-6 with just 7 minutes to go in Paris, after a try from George North.
The winger touched down in the far left-hand corner after gathering a kick through from Dan Biggar.
George North scored the only try in a 16-6 victory in Paris. Wales celebrated hard, after ending a run of eight defeats in a row.
Wales prepare to face Les Bleus at Stade de France later, as they fight to stay in this season's Six Nations title race.