The pair initially worked together on the coaching staff at Club Bruges in 2011, where Van Der Heyden then served for four years as assistant manager from 2013.
The former Belgium midfielder, 54, has since had spells as number two in Macedonia, Jordan and most recently at Kerala Blasters in India.
I am really happy to have Stephan join me here, he said. He wants to work really hard, he is humble, he is really passionate about football, and he is really focused on making players better, so it is a good support.
