Former Mamelodi Sundowns player Cassius Mailula started the match against d’Agadir, while new acquisition Thembinkosi Lorch made his debut, coming off the bench in the 64th minute.
The victory meant that Wydad achieved four consecutive wins in the league, keeping them in fourth place in the Botola Pro League standings.
Mokwena's team is now 13 points behind log leaders RS Berkane and one point behind second-placed AS FAR Rabat with ten matches remaining.