8. Article 17(1) of the 1986 Order (which renders void any provision making membership of a pension scheme compulsory for an employed earner) shall apply in relation to a self-employed earner as it applies in relation to an employed earner, but with the substitution for references to a personal pension scheme of references to an employment-related benefit scheme which would be such a pension scheme if self-employed earners were regarded as employed earners.