Lincoln earned a replay after Dany N'Guessan scored late on in the FA Cup first round tie at Kettering.
The home side saw Alfie Potter's 20-yard shot go wide and Iyesden Christie went close for the League Two side.
But Kettering took the lead with five minutes remaining when Exodus Geohaghan controlled the ball on his chest before firing into the corner.
Late on Scott Kerr's ball caught out the defence and N'Guessan nipped in to round the keeper and tap in.
Kettering: Harper, Eaden, Dempster, Geohaghan, Jaszczun, Potter, Wrack, Boucaud (Solkhon 90), Arther (Marna 74), Seddon, Christie (Beardsley 79). Subs Not Used: Williams, Dorrill, Westcarr.
Booked: Boucaud.
Goals: Geohaghan 85.
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Booked: Kovacs, Green.
Goals: N'Guessan 86.
Att: 3,314
Ref: Simon Hooper (Swindon).
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