Index: trunk/ppImage/src/ppImageReplaceBackground.c
===================================================================
--- trunk/ppImage/src/ppImageReplaceBackground.c	(revision 25324)
+++ trunk/ppImage/src/ppImageReplaceBackground.c	(revision 25759)
@@ -74,5 +74,5 @@
     pmReadout *modelRO = NULL;
     pmFPAfile *modelFile = psMetadataLookupPtr(&status, config->files, "PSPHOT.BACKMDL"); // Background model
-    if (modelFile) {
+    if (modelFile && modelFile->fpa) {
         modelRO = pmFPAviewThisReadout(&roView, modelFile->fpa); // Background model
     }