Increasingly often, it is stated that the universal values underpinning Western liberal democracies are a product of a ‘Judeo-Christian’ tradition. This article explores the legitimacy of this claim from the perspective of liberal-democratic theory. It argues that state-endorsed claims about the historical roots of liberal-democratic values are problematic (1) if they are promoted as though they are above democratic scrutiny and (2) if they insinuate that citizens who belong to a particular (majority) culture remain the ‘cultural owners’ of the core values underpinning the state. More pragmatically, the paper suggests that the claim carries the risk of failing to facilitate all citizens becoming or remaining committed to nurturing fundamental rights and a shared society based on norms of democratic equality.