About social justice, Hayek’s position gives rise to ambivalent remarks : on one hand, as a by-product of evolutionist thought process, his conclusions are coherent and realistic and it is hard to catch him out ; on the other hand, strong liberal convictions induce Hayek to choose provocative words. Concerning the “mirage of social justice”, we try to show in the paper that Hayek’standpoint is less radical than at the first sight. To begin with, abstract rules of just conduct are quite impartial and express a real conception of justice in society ; moreover, Hayek supports a form of minimum income so as to reduce the risk of market, but this goal could be more easily reached by application of a real basic income.