The actor died in January at the age of 54.

Eight Is Enoughstar Adam Rich’s cause of death has been revealed.

“The alcohol found in his system was produced by organs following his death.

HOLLYWOOD, CALIFORNIA - JANUARY 30: (L - R) “Eight Is Enough” actors Jimmy Van Patten, Connie Needham, Dianne Kay, Laurie Walters and Adam Rich attend the Los Angeles premiere of the musical “Hello Dolly” at the Pantages Theatre on January 30, 2019 in Hollywood, California. (Photo by Michael Tullberg/Getty Images)

Adam Rich.Michael Tullberg/Getty

That is according to the doctor who performed the autopsy.”

The report indicates that the54-year-old actor’s death on Jan. 7was accidental and that he died at home.

“Unfortunately, Adam becomes another statistic to our broader fentanyl problem.”

Rich rose to fame playing Nicholas, the youngest Bradford family member, on the 1970s sitcomEight Is Enough.

At the time of his death,TMZreported that law enforcement officials did not suspect foul play.

Rich’s other acting credits includedFantasy Island, CHiPs, Small Wonder, Dungeons & Dragons, andCode Red.