Late goals from Ben Strevens and Paul Benson were enough for Dagenham & Redbridge see off a spirited Kidderminster 3-1.
Up until then, it had looked like the visitors would have at least a replay to look forward to as they made all the early running and took the lead when Mark Creighton thundered a header past Tony Roberts.
Daggers finally started to wake up and were level on 34 minutes in spectacular fashion when Benson turned and shot into the top corner from 20 yards.
The home side took the game to the visitors in the second half, forcing a flurry of corners, but apart from Jon Nurse's cross that was smothered on the line, they could not create anything clear cut.
Harriers kept battling with striker Justin Richards a constant menace and he forced an excellent block from the legs of Roberts.
They grew even stronger and substitute Iyseden Christie had a great chance after outmuscling Jon Boardman, but Roberts came to the rescue again with a great parry.
But the Daggers finally make the breakthrough five minutes from time when Nurse got free down the right and his cross was slammed home by Strevens before leading scorer Benson sealed the victory right on the whistle, rifling home from close range.