By analogy with DNFM1/METTL13, which acts as a dominant suppressor of recessive DFNB26/GAB1 deafness, it is intriguing to speculate about the existence of a dominant modifier of SLC22A4, which could suppress the onset of deafness in the non-penetrant individual from family NSHL7. The gene discussed is SLC22A4; the disease is deafness.