This paper defends the traditional distinctive notion of the common good against the claim that it is normatively redundant on the aggregative conception. The first two sections of the paper outline the different candidate conceptions of the common good and the normative role of the common good within natural law theories. The paper then considers some difficulties faced by the instrumental and aggregative conceptions, before developing an Aristotelian account of the distinctive conception of the common good and demonstrating its normative significance for a natural law account of political and legal authority.