Actor Robert Downey Jr. is reportedly pleased that his son Indio is seeking help in rehab for his addiction to drugs.

The `Iron Man 3` actor himself has battled with substance abuse in the past.

"Robert clearly understands the struggle, and while of course this relapse was very upsetting to him, he is very proud of his son. Indio truly wants to stay clean. And no matter what, his dad will be right there with him,` people.com quoted a source as saying.

Indio, whose mother is Robert's ex-wife Deborah Falconer, has managed to stay clean for a while, but fell off the straight and narrow last month.

The youngster was arrested for possession of cocaine in West Hollywood after police caught him smoking something out of a pipe in a car.

He was booked for possession of cocaine, but was released from jail a few hours later after posting $10,000 bail.