CERN-LHC. A measurement is presented of the cross section for the electroweak production of a Z boson and a photon in association with two jets in proton-proton collisions at a centre-of-mass energy of 8 TeV. The Z bosons are identified through their decays to electron or muon pairs. The measurement is based on data collected with the CMS detector corresponding to an integrated luminosity of 19.7fb^−1. The electroweak contribution has a significance of 3.0 standard deviations.