Correction to: Genome Biol 21, 215 (2020)

https://doi.org/10.1186/s13059-020-02141-w

Following publication of the original article [1], the authors identified an error in the section "Distribution and structure of piRNA clusters" on page 7. The value of the SD is not correct. Instead of a SD 634.885 Kb, it should be SD 16.79.

The correct statement should read: “We used small RNA libraries generated from somatic tissues (female carcass) as well as germline tissues (ovaries) to annotate 1441 piRNA clusters with an average size of 10.911 kb (SD 16.79 kb; max: 139.92 kb) … ”