Six eyes of 6 patients who underwent surgical repair of leaking blebs following filtering surgery for glaucoma were retrospectively analysed. The conjunctiva could be mobilised in all cases with a fornix-based conjunctival flap, obviating the need for a graft. The scleral defect closure involved direct suturing in 2 patients, seleral rotational flap in 2, donor seleral patch graft in 1, and autologous fascia lata graft in 1. Only 1 patient required additional procedures to achieve closure of the leak. With a mean follow-up of 23 months (range 2 - 42 months), the intraocular pressure control was maintained in all except 1 patient. Adequate mobilisation of the conjunctiva and appropriate closure of the scleral defect are essential in the repair of leaking blebs.