Goals from Josh Coburn and Jonny Howson sealed a victory in Boro's last match of the year.
Huddersfield: Chapman, Lees, Helik, Nakayama (Hudlin 87'), Kasumu, Wiles, Hogg (Edmonds-Green 38'), Rudoni, Headley, Thomas, Koroma
Subs: Edmonds-Green, Diarra, Hudlin, Austerfield, Ayina, Iorpenda, Bellagambi, Stone, Falls
Middlesbrough: Glover, Dijksteel (Coburn 49'), Fry, van den Berg, Bangura (Engel 78'), Howson, Barlaser, Isaiah Jones, Rogers, Greenwood (Clarke 65'), Silvera (McGree 78')
Subs: Clarke, McGree, Gilbert, Coburn, Coulson, Engel, Jamie Jones, Kavanagh, Bridge