This paper concerns a little-known debate between Jürgen Habermas and György Márkus. Habermas argued that the Marxian paradigm of production was obsolete in the light of his own proposal for a ‘communicative turn’ in contemporary critical theories that avoids reductivism by focusing on moral learning processes connected to language and communicative interaction. This paper sets out Habermas’s critique of the paradigm of production and Márkus’s rebuttal.