Only a minor subset of Eomes‐positive, granzyme and perforin‐expressing ILC1‐like cells has been described to be involved in tumour surveillance in mice.7 In addition, human intraepithelial ILC1s express Eomes.8, 9 ILC2s are dependent on the expression of GATA‐3 and release mainly IL‐5 and IL‐13, thus contributing to T helper (Th)2‐responses. The gene discussed is EOMES; the disease is neoplasm.