An absolute thunderbolt from Joey Gudjonsson sealed another vital three points for Town in their quest for automatic promotion as the unbeaten League streak was extended to 21 games at the expense of Charlton Athletic.
The Terriers started in their now customary 4-3-3 'away' formation but were on the back foot early on when winger Scott Wagstaff burst through the middle of the Town defence after being played through by Bradley Wright-Phillips; however, the long leg of Jamie McCombe was on hand to intercept and slide the ball away from the danger zone.
Paul Benson then forced Peter Clarke to chase him down the left channel before cutting inside and shooting towards goal, but his tame third minute effort was easily gathered in by Ian Bennett.
Jack Hunt - introduced to the starting eleven following his superb cameo against Peterborough last weekend - went on a couple of early runs and his pace looked like it might cause left back Bassone some problems throughout the game.
Charlton were playing off the aerial strength of former Dagenham and Redbridge goal scorer Benson when they were attacking, but the second balls were all being swept up by the Town defence.
The pace of Benik Afobe almost saw him latch onto a clearance from skipper Peter Clarke in the 19th minute, but with the ball dropping over his shoulder the young Arsenal loanee couldn't bring it under control and goalkeeper John Sullivan was able to gather in.
Town's best attack of the game to date came in the 23rd minute from that man Hunt, who picked up a pass wide on the right from Gudjonsson before cutting infield and lofting a clever cross to the far post; Gary Roberts returned the favour, but somehow the ball evaded both Afobe and Hunt in the area. Lee Peltier recycled the ball to Gudjonsson on the edge of the box, but the Icelander saw two shots blocked before 'keeper Sullivan eventually managed to claim.
Peter Clarke was then adjudged to have blocked winger Wagstaff down the Town left, allowing midfielder Michael Stewart to swing the ball into the box. Big Gary Doherty rose highest at the far post, but under heavy pressure from the skipper he could only push a header into the waiting hands of Bennett.
Hunt was then set away down the right by a pinpoint Gudjonsson pass on the half hour mark before going down on the edge of the box under a challenge from behind by Bassone, but for some reason the referee allowed play to continue.
BOOKING - Gary Roberts was shown the first yellow card of the game in the 32nd minute for a cynical trip on the pacey Wagstaff as he raced towards the area. Charlton tried a clever set-piece from 30 yards out, but Wright-Phillips skied his effort from inside the area.
Benson's snapshot from inside the area was always flying over the crossbar as the 37th minute passed at the Valley
Kevin Kilbane hit a very powerful drive towards goal from fully 25 yards out on the stroke of the 43rd minute after good build-up play down the right from Hunt and Peltier, but his effort flew wide of Sullivan's right hand post.
The half didn't contain any clear cut chances for either side, so 0-0 was probably a fair score line as the 45 minutes came to a close.
HALF-TIME: CHARLTON ATHLETIC 0 HUDDERSFIELD TOWN 0
Michael Stewart got the second half underway with an early snapshot that Bennett gathered in at the second attempt before the same player got on the end of one of Charlton's best passing move minutes later - only to screw his shot badly high and wide.
Benik Afobe then used his pace to get down the right channel and fire a low ball across the face of goal, but a defender did well to get in front of Scott Arfield to clear to safety. The attack wasn't over though - Gudjonsson picked up the ball and smashed it to the back post where Gary Roberts headed wide from a narrow angle.
Hunt's excellent cross was then nodded behind by the experienced Doherty - but the Terriers were in the ascendancy. McCombe and Clarke both had efforts at goal from resulting Roberts corners that were scrambled desperately to safety by the home side before Lee Peltier went close to getting his second goal for the Club with a superb far post header that drifted inches wide.
Afobe was the next to try his luck with a header in the 57th minute as Roberts sent in another accurate delivery, but Stewart did just enough to put the striker off and the ball drifted harmlessly wide.
Bennett had to stay alert at the other end and pulled off a good save from Wagstaff's long range volley minutes later.
Town were pinning the Addicks in their own half by this stage as they attacked the end where the away fans were housed, but the defence still had to be alert and Peter Clarke pulled off a typically superb block to deny Wright-Phillips a clear shot at goal in the 64th minute.
Charlton fought back as the final 25 minutes approached and midfielder Jose Semedo got his head to a right wing cross from Wagstaff, forcing Bennett to push the ball over his own crossbar.
Clarke then deflected Benson's shot over the bar as the home crowd started to believe they could grab a goal.
SUB - Town made their first substitution in the 74th minute, with Gary Roberts replaced by Lee Novak. The Terriers switched to 4-1-3-2 at this stage, with Kilbane behind the other three midfield players and Novak up front with Afobe.
SUB - Charlton soon made their first change, with Kyel Reid replacing Therry Racon down their left side.
GOAL - Town then opened the scoring in the 83rd minute with Joey Gudjonsson netting a thunderbolt of a free-kick that left the goalkeeper with absolutely no chance. Joey had one attempt from 35 yards after being brought down and when the wall handled the ball, the Icelandic international stepped up on the edge of the box and smashed the ball to the 'keeper's left side in comprehensive fashion.
BOOKING - Jack Hunt was shown a yellow card in the 85th minute for a sliding challenge that halted a Charlton break just inside the Town half.
SUB - Lee Clark then moved to strengthen the midfield, bringing on Antony Kay for Benik Afobe in the 87th minute - reverting to 4-3-3.
Charlton threw big Gary Doherty forward in the closing stages to try and nick an equaliser but first Kay pulled off an excellent tackle to deny a Charlton player a clear shot at goal.
Semedo's header was comfortably dealt with by Bennett in the four minutes of added time at the end of the game and the Terriers hung on to grab another important three points in the quest for automatic promotion!
FULL-TIME: CHARLTON ATHLETIC 0 HUDDERSFIELD TOWN 1
Town's Team (4-3-3):
Ian Bennett; Gary Naysmith, Peter Clarke (c), Jamie McCombe, Lee Peltier; Kevin Kilbane, Joey Gudjonsson, Scott Arfield; Gary Roberts (Lee Novak 74), Benik Afobe (Antony Kay 87), Jack Hunt
Unused Subs: Nick Colgan, Danny Ward, Jordan Rhodes, Alan Lee, Sean Morrison
Town Bookings: Gary Roberts (32), lJack Hunt (85)