Nat. Chem. Biol. 12, 268–274 (2016); published online 22 February 2016; corrected after print 23 March 2016

Within the Discussion section, one instance referring to the published crystal structure of trimeric human intelectin-1 was attributed to reference 47 instead of the correct reference 44. The error has been corrected in the HTML and PDF versions of the article.