Matt Damon's daughters are proud of his gray hair.

While attending "Argo"'s gala dinner with Ben Afflick last Tuesday and hosted by the Peggy Siegal Company in a New York restaurant; Hollywood star Matt Damon revealed to PEOPLE that he is keeping his gray hair for his daughters' sake as they are fond of it. Damon's four daughters are from his wife Luciana Barroso.Damon has once dyed his hair for his role in "We Bought a Zoo" and since then he decided to let the silver hair invade his head and assured he is proud of it. We are expecting to see much of Damon soon with two films to hit theaters by the beginning of 2013 and they are "Elysium" and "Promised Land".