Index: trunk/ppSub/src/ppSubMakePSF.c
===================================================================
--- trunk/ppSub/src/ppSubMakePSF.c	(revision 21524)
+++ trunk/ppSub/src/ppSubMakePSF.c	(revision 23235)
@@ -81,6 +81,5 @@
     // Extract the loaded sources from the associated readout, and generate PSF
     // Here, we assume the image is background-subtracted
-    pmReadout *sourcesRO = pmFPAfileThisReadout(config->files, view, "PPSUB.SOURCES");
-    psArray *sources = psMetadataLookupPtr(&mdok, sourcesRO->analysis, "PSPHOT.SOURCES");
+    psArray *sources = psMetadataLookupPtr(&mdok, minuend->analysis, "PSPHOT.SOURCES");
     if (!psphotReadoutFindPSF(config, view, sources)) {
         psError(PS_ERR_UNKNOWN, false, "Unable to perform photometry on subtracted image.");