Abstract The emerging global governance of migration is dominated by two discourses which shape policy approaches: 1) migration management and 2) the migration–development nexus. With large numbers of labour migrants being marginalised, migrant rights organisations have formed global alliances to argue for the centrality of a third discourse, the rights-based approach to migration. The question is how to inject this into the global debate which has sidelined migrant rights issues. Despite having hardly any bargaining power and restricted space for direct access vis-a-vis global governing institutions, migrant rights organisations are employing a number of strategies to overcome this marginalisation. We analyse these efforts by drawing on social movement studies and International Relations research on communicative action. Empirically this article draws on observations made during two major global fora: the negotiations in connection with the new Convention on ‘Decent Work for Domestic Workers’ at the Inte...