Index: trunk/pswarp/src/pswarpParseCamera.c
===================================================================
--- trunk/pswarp/src/pswarpParseCamera.c	(revision 18924)
+++ trunk/pswarp/src/pswarpParseCamera.c	(revision 20115)
@@ -99,7 +99,14 @@
         // This file, PSPHOT.INPUT, is just used as a carrier; output files (eg, PSPHOT.RESID) are defined by
         // psphotDefineFiles
-        pmFPAfile *psphotInput = pmFPAfileDefineSkycell(config, output->fpa, "PSPHOT.INPUT");
+        pmFPAfile *psphotInput = pmFPAfileDefineSkycell(config, NULL, "PSPHOT.INPUT");
         if (!psphotInput) {
             psError(PS_ERR_IO, false, _("Unable to generate output file from PSPHOT.INPUT"));
+            return false;
+        }
+        psphotInput->src = psMemIncrRefCounter(output->fpa);
+
+        pmFPAfile *psphotInSources = pmFPAfileDefineSkycell(config, psphotInput->fpa, "PSPHOT.INPUT.CMF");
+        if (!psphotInSources) {
+            psError(PS_ERR_IO, false, _("Unable to generate output file from PSPHOT.INPUT.CMF"));
             return false;
         }