Mackie scored deep into injury time to complete a remarkable comeback from Mark Hughes' side, who recovered from 2-0 down to secure a highly-fortuitous yet valuable victory. The win - just their second in 17 Barclays Premier League matches - moved the Londoners out of the relegation zone and they are now two points clear of danger.
The gloss was taken off the victory somewhat by a large section of the home crowd opting to boo captain Barton when he was replaced by Mackie, and the striker said: "You don't like to see that, especially towards your captain."
Barton, who has been dogged by controversy throughout his career, admitted that he was disappointed at the crowd's fury towards him but conceded he had put in the worst performance of his career.
The midfielder, who signed from Newcastle on a free transfer last summer, gave the ball away on a number of occasions in the first half, his tackling was clumsy, and one shot at goal had almost ended up in the second tier of the School End at the west London ground.
Mackie insists the 29-year-old will not be affected by the booing, however, and is confident that his skipper will bounce back from the poor display.
"Joey is an immensely strong character so I don't think we need to worry about him," Mackie said. "He was probably the happiest lad in the changing room after the match. He is the team captain and he wants us to win games whether he is banging the goals in or not and we are lucky to have him."
QPR may have edged out of the bottom three with Wednesday night's win but they still have a huge mountain to climb if they are going to avoid relegation.
Their nine remaining games include fixtures against the top five teams in the league and Mackie knows the club must not get carried away despite their thrilling win.
He added: "We're under no illusions. We've got a very tough run-in, we're right in the mix at the bottom, and there is still the possibility we could get relegated. But we've put ourselves in that position, and we're the only people who can get ourselves out of that position."
Source: PA
Source: PA