Casa Pia had to wait until six minutes from time to score the all-important goal that has propelled them at the top of the standings.
They lead with 49 points, two ahead of Benfica B and five distant from Chaves. All three teams have played 24 games with 10 matches left for end of the season.
The Malta international defender was once again in the starting formation, producing another committed performance in the three-man backline.
Casa Pia’s next game is a home fixture against CD Mafra on March 8.