Index: trunk/ppStack/src/ppStackCamera.c
===================================================================
--- trunk/ppStack/src/ppStackCamera.c	(revision 19017)
+++ trunk/ppStack/src/ppStackCamera.c	(revision 19194)
@@ -350,4 +350,16 @@
     }
 
+    if (havePSFs) {
+        pmFPAfile *targetPSF = pmFPAfileDefineOutput(config, output->fpa, "PPSTACK.TARGET.PSF");
+        if (!targetPSF) {
+            psError(PS_ERR_IO, false, _("Unable to generate output file from PPSTACK.TARGET.PSF"));
+            return false;
+        }
+        if (targetPSF->type != PM_FPA_FILE_PSF) {
+            psError(PS_ERR_IO, true, "PPSTACK.TARGET.PSF is not of type PSF");
+            return false;
+        }
+    }
+
     psMetadata *recipe = psMetadataLookupMetadata(NULL, config->recipes, PPSTACK_RECIPE); // Recipe for ppSim
     if (!recipe) {