Correction to: Nature Chemical Biology https://doi.org/10.1038/s41589-023-01432-0, published online 28 September 2023.

In the version of the article initially published, there was an error in the “F1 score” bar graph in Fig. 4e, where the bars representing HP1α and “Random” were considerably lower than their intended values of 0.8 and 0.5, respectively. This has now been corrected in the HTML and PDF versions of the article.