Kyle MacLean spent the second half of the season cementing himself as a piece of the future for the Islanders.

The Islanders, in turn, made that official Wednesday, signing MacLean to a three-year deal to preempt restricted free agency.

Salary terms were not immediately available.

The 25-year-old MacLean, a former undrafted free agent whose NHL debut came in January, quickly established himself as a hardworking player in the bottom six for the Islanders, usually centering Matt Martin and Cal Clutterbuck on the fourth line.

He finished last season with four goals and five assists in 32 games and was one of the Islanders’ best players in their five-game loss to the Hurricanes in the first round of the playoffs.

MacLean is the son of Islanders assistant coach and former Devils star John MacLean.