Already a scorer in the round of 16 first leg (1-0), "Kyky" was again decisive against the Spaniards, in the 39th minute, served in depth by the Brazilian Neymar.
He had found the fault a little earlier (34th), but his goal was canceled for an offside by Nuno Mendes, at the start of the action.
There is only Edinson Cavani (200 goals) ahead of him.
But to double it and become number one, Mbappé (23) would have to play at least one more season in Paris.
However, he has still not extended his contract, which expires in June, and remains free to go where he wants now.
Real Madrid have already made it known that they want him.
Paris SG "will try everything" to keep him, explained the sporting director, Leonardo, to L'Equipe, but for the moment the negotiations have failed.
But a sentence from the player has fueled the hope of Parisian supporters to keep their jewel.
"Being the top scorer in the history of PSG, you can't necessarily spit on it. We'll see how it goes," slipped the player after his double against Saint-Étienne (3-1), February 26. , which allowed him to join "Ibra".
Before the kick-off of the match against the "Greens", the Parisian ultras asked him to stay in Paris: "your story is written here", they launched, in a banner.
A banner addressed to striker Kylian Mbappé is displayed by Parisian supporters, during the home match of the 26th day of Ligue 1 against Saint-Etienne, on February 26, 2022 at the Parc des Princes FRANCK FIFE AFP / Archives
"It's nice to have the affection of the supporters. We play for this kind of thing. Of course, there is the performance side, statistics, title, but leaving an imprint in the memory of people, it's a way to make history. It touches me," he reacted.
© 2022 AFP