‘Everyone agrees that the moral features of things supervene on their natural features’ (Smith (1994), 22). Everyone is wrong, or so I will argue. In the first section, I explain the version of moral supervenience that Smith and others argue everyone should accept. In the second section, I argue that the mere conceptual possibility of a divine command theory of morality (DCT) is sufficient to refute the version of moral supervenience under consideration. Lastly, I consider and respond to two objections, showing, among other things, that while DCT is sufficient to refute this version of moral supervenience it is not necessary.