Index: trunk/ppStack/src/ppStackMatch.c
===================================================================
--- trunk/ppStack/src/ppStackMatch.c	(revision 14839)
+++ trunk/ppStack/src/ppStackMatch.c	(revision 14840)
@@ -53,5 +53,5 @@
 
     psArray *sources = NULL;            // Sources in image
-    if (sourcesRO->analysis) {
+    if (sourcesRO) {
         sources = psMetadataLookupPtr(&mdok, sourcesRO->analysis, "PSPHOT.SOURCES");
     }