Correction to: Nature Immunology https://doi.org/10.1038/s41590-019-0423-0, published online 1 July 2019.

In the version of this article initially published, the cell conversion was stated incorrectly (‘ILC2s to ILC1-like cells’) in the first sentence of the second paragraph in the second Results subsection; the correct description is ‘ILC1s to ILC2-like cells’. Also, the far left plot in Fig. 1d was missing the vertical axis label; this should be ‘IL-13−APC’. Finally, in the legend to Fig. 3a,b, the human ILCs were identified incorrectly (CD45+CD56CD127); the correct phenotype is CD45+CD56CD127+. The errors have been corrected in the HTML and PDF versions of the article.