Infrared spectra of solid mixtures of dimethyl sulfone and ice were studied. A comparison of the spectra to those of the pure solids indicates bands attributable to two solid–solid interactions–a stronger and a weaker one—both centered on the OH⋯OS moieties. The bonded ν(OH) stretch assigned to the stronger interaction is part of the broad ‘3μ’ ice band and its wavenumber value is close to that reported previously for the 1:1 ((CH3)2SO2)·H2O) complex isolated in rare gas matrices. The weaker interaction is discerned at higher wavenumbers as a very low intensity feature, only slightly shifted from the free ν(OH) band positions.