The former Rosenborg midfielder notched his first goal in six games as the visitors claimed their second successive league victory.
Dabney Dos Santos fired AZ into the lead with his fourth goal in as many games, before Tom Beugelsdijk equalised for Den Haag.
AZ's victory moved them three points clear in fourth place, ahead of FC Utrecht.
Basement club Cambuur Leeuwarden were unable to make much headway on closing the gap on their relegation rivals, drawing 1-1 at home to Willem II.
Jamiro Monteiro put the hosts ahead, only for defender Jordens Peters to grab his first goal of the season to scramble Willem II a draw.