Index: trunk/ppViz/src/ppVizPSF/ppVizPSFLoop.c
===================================================================
--- trunk/ppViz/src/ppVizPSF/ppVizPSFLoop.c	(revision 34800)
+++ trunk/ppViz/src/ppVizPSF/ppVizPSFLoop.c	(revision 36862)
@@ -117,5 +117,5 @@
 
                         pmModel *model = pmModelFromPSFforXY(psf, xSrc, ySrc, 1.0); // Model for normalisation
-                        float fluxNorm = model->modelFlux(model->params);               // Flux for peak=1
+                        float fluxNorm = model->class->modelFlux(model->params);               // Flux for peak=1
                         float fluxPeak = powf(10.0, -0.4 * data->fakeMag) / fluxNorm; // Peak flux
                         source->peak = pmPeakAlloc(xSrc, ySrc, fluxPeak, PM_PEAK_LONE);
@@ -135,5 +135,5 @@
                     source->peak = pmPeakAlloc(xSrc, ySrc, 1.0, PM_PEAK_LONE);
                     pmModel *model = pmModelFromPSFforXY(psf, xSrc, ySrc, 1.0); // Model for normalisation
-                    float flux = model->modelFlux(model->params);               // Flux for peak=1
+                    float flux = model->class->modelFlux(model->params);               // Flux for peak=1
                     psFree(model);
                     source->psfMag = -2.5 * log10(flux);