Beaulieu was drafted 17th overall in the 2011 NHL Entry Draft. He played six games for Montreal last season, with two assists and a plus-5 rating.
He had been assigned to the Canadiens' minor-league team in Hamilton, but the Bulldogs have yet to play a game this season.
Earlier Tuesday, Canadiens head coach Michel Therrien confirmed that Max Pacioretty and captain Brian Gionta will return to play on Wednesday against the Calgary Flames.
Pacioretty has been out with an injured wrist.
Gionta joined his teammates in Calgary on Tuesday after attending to a "family emergency."