Bristol City put in one of their worst displays of the season on Tuesday evening at the John Smith's Stadium.
A first goal for the Terriers from Chris Willock and a Karlan Grant penalty were enough to see off the West Country side.
And a sanguine Lee Johnson gave his reaction to the defeat following the match, in which the home side produced their best home display of some time that had the locals purring and City looking in danger of their season grinding to a halt.
Johnson explained following the game that the performance and result hurt him - and that he was personally as upset as at any point of his four years in charge at Ashton Gate.
"We know and the players know that wasn’t anywhere near the standard we’ve set over the years," said Johnson in his post-match press conference.
"We had a very good training session yesterday but as a collective we haven’t performed anywhere near good enough.
"Obviously the first half display was the bulk of it. And at least in the second half we looked like we enjoyed football for a few spells and moved the ball a little bit," he said of the game.
The Expected Goals stats from the game told their own story: 4.24 goals on average for Huddersfield Town, and 0.22 for Bristol City.
City were out-shot, out-thought and out-fought, with Danny Cowley revealing afterwards that the Terriers did not know or anticipate City having set up with three centre-backs. The team sheets forced a rethink but it didn't hinder the hosts.
Huddersfield finished the match with double the shots of the visitors (both on-target and regular shots) and belied their lowly league position.
"I feel upset tonight - as upset as I’ve been actually, with watching one of my teams that I've signed and perform in a way like that," said Johnson afterwards.
"By that I'm not discrediting Huddersfield because I thought they were bright and they looked like they buzzed off playing football.
"I suppose what we need to think about now is how we go from the level of performance in the first half to what happens to go and get a result at Millwall on Saturday," said the head coach.
