Buffon lost possession of the ball late in the game against Lecce which allowed the visitors to grab a 1-1 draw.
"These things happen," Zoff told ANSA. "There is no reason to make a drama out of it. I think that Buffon, even if he hasn't forgotten about it, has put it behind him.
"It was just an error, a mistake that can happen in the game.
"It would certainly have affected him at the time, but I don't expect it to cause any problems for him on Sunday.
"Everyone in football, in all professions, make mistakes. It is only different for a goalkeeper because it is more evident, but not more serious."