A Michigan man thought he was having a stroke after eating brownies his daughter had baked— that turned out to be laced with marijuana, USA Today reported.

Unaware that his 17-year-old daughter had added the psychoactive ingredient, the 58-year-old man ate the baked goods. Firefighters and police responded to a medical call at the home, about 40 miles northwest of Detroit. After police arrived, the girl admitted to making pot brownies.

The man, who hasn’t been named, was taken to St. Joseph’s Hospital in Pontiac, Mich., according to the sheriff’s office. The leftover brownies were taken to a lab for analysis, and an investigation is underway. Officials have yet to determine if the daughter will be charged.

Medical marijuana has been legal in the state since 2008, but possession is a misdemeanor that can lead to up to one year of jail and up to a $2,000 fine, according to the National Organization for the Reform of Marijuana Laws (NORML).

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