Institute picked up all three points at Lakeview Park to keep pace with title leaders Warrenpoint Town.
Two second half goals from Stephen Curry secured the Stutes victory.
Curry almost completed his hat-trick in the final ten minutes, however, he couldn't keep his low shot on target.
Kevin Deerys side are still in the race for promotion, sitting joint second on 27 points with Ballyclare Comrades.