The Burnley midfielder hit a stunning free-kick in the first-half.
Defour admitted his strike had been one of his best ever goals but was too wrapped up in the moment to feel it at the time.
“It is (a special moment), but you only look like that after. For me at that time, it was like any other goal. I don't score a lot of goals, so I'm always happy to score a goal," said the midfielder, who took aim ahead of Johann Berg Gudmundsson to get on the scoresheet in a league game for the first time since last September.
“I was discussing it with Johann just before," explained Defour.
“We were watching the wall and Johann said he could get it across the wall but then Matic just stepped to the right and I said 'you can't get it, let me take it' and it went straight in."
On the draw, he added: “In the second half, of course United had to put on pressure and take a lot of risk and they were rewarded at the very end.
“United also have qualities and they got the goal at the end but that doesn't change the way we performed. I think we performed well.
“That was the right way to respond and I hope we can get another positive result at Huddersfield."