Valence-to-core x-ray emission (XES) spectra have previously been simulated using Slater's transition method, and also at the level of equation-of-motion coupled-cluster theory using a reference state containing a core hole. In the latter case, however, the coupledcluster amplitude equations can sometimes be difficult to converge in the presence of a core hole. (This can cause problems for perturbation theory as well. ) The analogous procedure is much more robust when used with TD-DFT. It can be extended to DFT/CIS using the following procedure.