Steve Bruce bemoaned VAR for a second successive weekend as Newcastle's losing start continued at his former club Aston Villa.
The hosts were already leading thanks to Danny Ings' stunning opener when they were awarded a penalty on the hour following a VAR review.
Tyrone Mings shot on goal only for his effort to strike the hand of Newcastle captain Jamaal Lascelles.
Referee David Coote did not spot the infringement but was advised to take a look on his pitchside monitor, after he which he pointed to the spot, from which Anwar El-Ghazi converted.