The parliamentary authorities have taken the view that because the Supreme Court has quashed the prorogation of Parliament, everything else done by the Royal Commission in the morning of 10 September has been quashed as well. Accordingly, both the Speaker of the House of Commons and the Lord Speaker have indicated that Royal Assent for the Restoration and Renewal Bill would need to be signified again. This paper argues that the Speakers have wrongly understood the Supreme Court’s judgment in this respect.