An ostomy appliance for attachment to a stoma, comprising an adhesive wafer ( 100 ) a first part of which is covered by a first release liner ( 104 ) and a second part of which is covered by a second release liner ( 106 ). At least one of the two release liners defines an attached part which in an initial state is attached to the skin facing adhesive layer ( 102 ), and a foldable part which in a folded state is folded such that it covers at least a part of the attached part and such that it is not in direct contact with the skin facing adhesive layer. A cutting guide ( 120 ) is printed onto the at least a part of the attached part and the foldable part.