Huddersfield Town manager Mark Robins was left fuming as Bolton snatched a late winner.
Sub Joe Mason scored the only goal in stoppage time to snatch all three points at the John Smith’s Stadium as Bolton moved 12 points above the relegation zone.
Danny Ward clipped the woodwork in the first half for Huddersfield before Chung-Yong Lee side-footed a shot against a post when he was unmarked in the box.
Oscar Gobern had a header cleared off the line for the home side and it looked like Lee’s miss would prove costly. But deep into the four added minutes, Lee swung over a corner and Mason - a 71st-minute sub - connected brilliantly to fire home into the bottom corner.
Huddersfield manager Robins was angry at his side’s failure at the corner and said: “We did not defend a set play and that has cost us the point we had.
“The players have a responsibility to pick up their men and defend.
“You have to do your job but we didn’t do that, and it’s tough to take.”