Norwich captain Grant Hanley's own goal helped Huddersfield earn a draw and move off the bottom of the Championship table.
The Terriers went into the contest having gone four games without a league goal - equalling their longest run since 2000 - and away goalkeeper Angus Gunn was not called into making a save.
But the unfortunate Hanley saw the ball ricochet off him into his own net from a yard after Martyn Waghorn's second-half lob had hit an upright.
And a frustrating night for the visitors was compounded when Marquinhos was sent off for an alleged elbow on Josh Ruffels in the second minute of stoppage time.