Ngoy, who is on loan from Stoke, was substituted on in the 66th minute to make his debut.
Less than four minutes later, Ngoy had found the back of the net after dancing the defender and then burying the ball inside the keeper at the left post.
Ngoy now has one goal from one appearance for his new club.
Julien Ngoy's first goal!!! @JulienNgoy28@stokecity@WFCOfficial#SCFC#Saddlers#DeployNgoypic.twitter.com/8xs00qOPYx
— Norwich Fc U23 (@NorwichU23) February 4, 2018