Australian Rostyn Griffiths scored the winner as Roda JC notched up their third win of the campaign to upset AZ Alkmaar 1-0 away.
An unmarked Griffiths stole into the box to head home a corner kick in the 36th minute and secure his debut goal for the Dutch outfit.
The former Perth Glory star joined the Eredivisie club in the offseason where fellow Aussies Tomi Juric and Daniel De Silva have also signed. Neither Juric nor De Silva made the teamsheet.
Roda currently sit fourth on the table.