Teammate Hummels has talked of the importance of supporters backing each player, though, telling reporters: "You shouldn't be booing Germany internationals during a home game. Especially when there is such a good atmosphere, like it was at the beginning.
"It was a nice atmosphere for a friendly, the fans were celebrating, they were clapping for successful plays. But when they started booing, they also stopped supporting the other players. It seemed like everybody was waiting until Ilkay had the ball to boo him.
"I was not happy with that and I hope that this is not going to happen for a longer time, because everybody on this earth made a mistake once and they both didn't do a lot wrong before that."
Ozil did not get off the bench as Germany rounded off their World Cup 2018 preparations with a slender win.