In the News & Views article 'Molecular biology: How to duplicate a DNA package' by Alysia Vandenberg & Geneviève Almouzni (Nature 483, 412–413; 2012), reference 5 should have been cited in the first paragraph, rather than reference 1. And in the sixth paragraph, reference 5 should not have been cited; instead, reference 1 should have been cited after “chromatin remodeller enzymes”.