PHOENIX (AP) — A son of actor Jean-Claude Van Damme has been sentenced to 18 months of probation after pleading guilty to disorderly conduct for holding his roommate at knifepoint at their apartment in suburban Phoenix.

Maricopa County Superior Court officials said 22-year-old Nicholas Francois Van Varenberg was sentenced Wednesday.

Tempe police said Van Varenberg became upset at his unidentified roommate for answering the door, grabbed a knife and kept his roommate from leaving the apartment.

Charges of kidnapping, possession or use of marijuana and possession or use of drug paraphernalia were dismissed when Van Varenberg pleaded guilty to disorderly conduct on Aug. 15.

Van Varenberg is the youngest son of Van Damme, known for his martial arts action films of the 1980s and 1990s.

[Featured image: Maricopa County Sheriff’s Office via Associated Press]