Robin Williams' teenage daughter promised herself she would not fall victim to the dangers of alcohol after witnessing her father's battle with the bottle.

The Hollywood funnyman quit drink and drugs in the 1980s after overcoming a cocaine habit.

But he suffered a relapse in 2006 when he succumbed to alcoholism - leading to the star checking himself into a rehabilitation center in a desperate bid to kick his addiction.

And Williams' 18-year-old daughter Zelda, a budding actress, is adamant she won't get caught up in the Hollywood party lifestyle.

She tells People, "I took a vow of sobriety when my dad relapsed, so I don't drink. And I have great friends."

When asked about her father's progress since his relapse, she replied: "He's great. He's on the wagon."

- Robin Williams Gallery

(This news article provided by World Entertainment News Network)