"We are very pleased to sign Louis to a multi-year contract," said general manager John Chayka. "Louis had a breakthrough season last year and we are confident that he and Mike (Smith) will form a great tandem for us."
Terms of the contract were not disclosed, but Domingue himself took to Instagram to announce the term - a two-year deal.
The 24-year-old won the NHL's Rookie of the Month in January after posting a 6-3-2 record, while replacing the injured Smith. He finished the season with a 15-8-5 record with a 2.75 goals-against average and a .912 save percentage.