Gonalons has been linked with Napoli for much of this season.
"For Maxime, the answer is no," he told RMC Sport. "The player will remain in Lyon until the end of the season.
"100 per cent he will stay here until then.
"I've already informed Aurelio De Laurentiis because he's a person that I respect.
"Napoli has proposed 15m plus 2m in bonuses."