Forest Green 0-1 Kidderminster
Anthony Malbon's strike was enough for Kidderminster to move above Forest Green and into third in the Blue Square Bet Premier table.
Malbon fired home Amari Morgan-Smith's knock-down at the far post, before Eddie Oshodi headed over for the hosts.
After the break, Morgan-Smith's close-range header was tipped over by Sam Russell, while Chris Stokes' snapshot was turned away at the other end.
But the visitors held on to pick up their fourth consecutive victory.