Correction to: Nature Published online 18 September 2019.

In this Letter, author Rita G. Domingues should have been associated with both ‘Champalimaud Research, Champalimaud Centre for the Unknown, Lisbon, Portugal’ (affiliation 1) and ‘Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal’ (originally affiliation 4, now renumbered as affiliation 2), instead of only affiliation 1. Affiliations 2–4 have been renumbered accordingly. The original Letter has been corrected online.