Philip Billing secured a sixth successive Championship win for Nahki Wells and his Huddersfield teammates 1-0 against promotion rivals Reading at the John Smith's Stadium.
Midfielder Billing fired home the only goal eight minutes from time just when it seemed Reading had done enough to claim a point.
Rajiv van La Parra missed a first-half penalty, Town's first spot-kick in the league this season.
RAI SIMONS
Millwall missed their chance to move into the Sky Bet League One play-off places after playing out a goalless draw with Rai Simons and his second-bottom Chesterfield teammates at The Den.
Three days after stunning Premier League champions Leicester to reach the FA Cup quarter-finals, Millwall struggled to hit top gear against their relegation-threatened opponents.
