Nicke Kabamba netted an 89th-minute winner as Aldershot climbed into third place in the National League with a 1-0 home victory over Maidenhead.The on-loan Portsmouth striker produced a fine diving header past Carl Pentney at the far post following Callum Reynold's cross.Before that Aldershot had dominated with Pentney making several fine saves to keep Maidenhead, now without a win in six games, on level terms.First he tipped a close-range Scott Rendell header over the bar and then made a flying save to keep out Emmanuel Oyeleke's powerful drive.Pentney also foiled Bobby-Joe Taylor before Rendell's downward header hit a post six minutes from time but Kabamba had the final say.