Chris Brandon's lone strike helped 10-man Huddersfield restore pride against minnows Worcester and book an FA Cup third round trip to Chelsea.
Danny Schofield was sent off minutes before half-time
The high-flying League One outfit endured a scrappy first half and Danny Schofield was sent off just before the break for diving.
It was his second bookable offence but Worcester failed to make the most of their advantage after the interval.
In the 62nd minute, Brandon tucked the ball inside the left post for victory.
Worcester: McDonnell, Chris Smith, Justin Thompson, Lyttle, Rob Warner, Colley (Wedgebury 86), Hyde (Clegg 64), Hines, Warmer (Preece 75), Kelly, Webster.
Subs Not Used: McDonald, Danny Hodnett.
Booked: Webster, Hyde, Lyttle, Preece.
Huddersfield: Rachubka, Holdsworth, Mirfin, Nathan Clarke, Adams, Brandon, Hudson, Worthington, Schofield, Taylor-Fletcher (Abbott 45), Booth.
Subs Not Used: Carss, Senior, Tom Clarke, Collins.
Sent Off: Schofield (44).
Booked: Schofield, Worthington, Adams.
Goals: Brandon 61.
Ref: I Williamson (Berkshire).