The Maastricht Treaty has widely been identified as a turning point in European integration. However, little dedicated research has been done into how 'Maastricht' affected media discourses about Europe. In this article, we aim to shed more light on this matter by means of a qualitative frame analysis of media discourses in Britain and Germany, two countries that have traditionally had different perspectives on European integration. We show that in the course of the debate about the Maastricht Treaty the media discourses in the two countries gradually converged along the same aspects of European integration and increasingly used negative values to evaluate these aspects. This convergence of debates can be seen as representing a nascent transnational public sphere for the discussion of EU affairs.© 2018 the author(s). published by informa uK limited, trading as taylor & francis Group. this is an open access article distributed under the terms of the Creative Commons attribution-nonCommercial-noderivatives license (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.