Robin Williams is back in rehab, but this time, it’s to reaffirm his commitment to sobriety.

Williams is receiving treatment at Hazelden Addiction Treatment Center in Lindstrom, Minnesota, TMZ reports, and staying in The Lodge section of the facility.

“Lodge Program participants who have years of recovery come to tune up spiritually, do inventory step work, focus on issues of sponsorship, and recommit to their program of action,” reads Hazelden’s website. “Other particularly useful and valuable ‘Living Sober’ Lodge Program topics include meditation, challenges in long term sobriety, and the source of our spiritual malady.”

A rep told TMZ the actor is “working back-to-back projects” and is “simply taking the opportunity to fine-tune and focus on his continued commitment, of which he remains extremely proud.”

In 2006, after 20 years of sobriety, Williams entered rehab for alcoholism.

During his rise to fame in the late 1970s, Williams became addicted to alcohol and cocaine, he told People in 1988.

“Cocaine for me,” Williams said at the time, “was a place to hide. Most people get hyper on coke. It slowed me down. Sometimes it made me paranoid and impotent, but mostly it just made me withdrawn. And I was so crazy back then — working all day, partying most of the night — I needed an excuse not to talk. I needed quiet times and I used coke to get them.”