AFC Telford United dented Kidderminster's play-off bid with victory over their local rivals.
The hosts led within three minutes when Phil Trainer headed home Jonathan Brown's corner.
Jack Byrne was denied an equaliser by Ryan Young's save but the Bucks keeper was beaten when Anthony Malbon headed home Nick Wright's cross.
Chris Blackburn won the game with a superb volley from inside the box to take Telford clear of the bottom four.
Harriers are now seven points behind the top five, while the Bucks are six above the relegation zone.
VIEWS FROM THE DRESSING ROOM
AFC Telford United manager Andy Sinton told BBC Radio Shropshire:
"I've got to give the players a lot of credit as they delivered everything I asked for.
"I made a couple of changes and people stepped up to the plate - that's what we wanted.
"It was a little bit edgy at times but, considering where we are in the league, we're going to be. But that's as good as we've been for a long time and the crowd were magnificent."
AFC Telford United 01 Young 02 Salmon 03 Newton 16 Preston Booked 18 Blackburn 08 Trainer 20 Davies Booked 09 Perry 19 Jackson 22 Brown (Cain - 88' ) 25 Sharp (Brooke - 74' ) Substitutes 32 Robinson 17 Clough 27 Smith 28 Cain 21 Brooke Kidderminster Harriers 31 Breeden 02 Vaughan 04 Jones 06 Marshall 22 Demetriou 11 Byrne (Bradley - 46' Booked ) 18 Gittings (Rowe - 83' ) 24 Storer 09 Guinan (Hendrie - 75' ) 14 Wright 27 Malbon Substitutes 21 Lyness 03 Williams 30 Bradley 34 Hendrie 10 Rowe