 Haemodialysis patients receiving dialysis through an NHS renal service will be invited to participate. To participate they will be consenting, over 18 years of age and experiencing depressive symptoms at a clinical level. Those eligible will be randomly assigned into one of two conditions; a control condition receiving treatment as usual TAU, and an intervention condition receiving TAU alongside an ACT self-help manual with weekly telephone support. The manual will be completed over six weeks. Both groups will be asked to complete questionnaires prior to intervention and 2 and 4 months post-intervention. Participants from each condition will be asked to participate in interviews to explore their experiences of taking part. 