Eric Roberts talks openly about his family’s complicated history.

The Runaway train alumnus opened up about how his long-term battle with cocaine addiction affected his relationship with his 33-year-old daughter Emma Robertswhich he shares with ex Kelly Cunningham.

After Eric, who married his wife Eliza Roberts in 1992 – divorced from Kelly when Emma was a baby, he lost the subsequent custody battle, writing in his new memoir Runaway Train: Or the story of my life so far, per People“The biggest consequence of my drug use was of course the loss of Emma.”

And to make the court’s ruling even more difficult at the time, the 68-year-old recalled his estranged sister Julia Roberts Taking Kim’s side in the lawsuit because of his struggle with addiction. In fact, he credited her decision to side with Kelly for further disrupting their complicated relationship, though he now admits that the Beautiful woman star made the right choice.