The Hungary midfielder has been linked with a move to Premier League new boys QPR next season and, although Hughes wants to keep him at Fulham, he cannot guarantee a place in the starting XI for anybody.
Hughes said: "There are conversations that go on but it is clear I would like him to stay. Zoltan is in a position where he can talk to foreign clubs and keep his options open when his contract runs out.
"The problem is I cannot guarantee regular football. I cannot do that for anybody in the squad and maybe he feels like he needs to move elsewhere to get a chance to play on a more regular basis.
"We are going to have more conversations at the end of the season but I would like him to stay."