James hit a screamer in the weekend's 3-2 defeat of Nottingham Forest.
He said: "Funnily enough I scored a similar goal for United's reserves against Preston last season but that was in front of about 100 spectators. It makes it a bit special when nearly 15,000 are present.
"I was a bit nervous when I first arrived here but now I am enjoying every minute. The gaffer has high expectations but I am learning all the time."