) was one of the most influential sociologists of the last century. In the sociology of religion his status is uncontested. Since the publication of Berger's now classicThe Sacred Canopy (1967) it has been almost impossible not to cite Berger in discussions of secularisation and, later, desecularisation. The idea of a 'sacred canopy' has itself been a key metaphor for the sociology of religion for more than fifty years now. When Berger recently passed away, mainstream media ran obituaries discussing the many facets of his scholarly contributions -evidence of his influence beyond a small circle of professional sociologists.This article examines Berger's main contributions to the sociology of religion. It is not a systematic review of Berger's sizable oeuvre, and sidesteps his theological work entirely.Rather, the focus is on the ideas presented in The Sacred Canopy, namely the theorisations of religion and secularisation, and his later espousal of 'desecularisation'. After an exposition and assessment of these key themes, the article looks at Berger's influence in the sociology of religion, and, finally, offers an 'internal critique' of his work: I argue that the reception of The Sacred Canopy has been a missed opportunity in terms of a genuinely constructionist approach to the sociology of religion and, most importantly, that the source of this is Berger's inconsistent application of his own constructionist ideas to his work on religion.