  We study the impact of large trilinear R-parity violating couplings on the
lightest CP-even Higgs boson mass in supersymmetric models. We use the publicly
available computer codes SARAH and SPheno to compute the leading two-loop
corrections. We use the effective potential approach. For not too heavy third
generation squarks (< 1 TeV) and couplings close to the unitarity bound we find
positive corrections up to a few GeV in the Higgs mass.
