Index: trunk/psModules/src/objects/pmSourceMoments.c
===================================================================
--- trunk/psModules/src/objects/pmSourceMoments.c	(revision 29004)
+++ trunk/psModules/src/objects/pmSourceMoments.c	(revision 29044)
@@ -77,4 +77,7 @@
     // well:
     psF32 sky = 0.0;
+    if (source->moments == NULL) {
+      source->moments = pmMomentsAlloc();
+    }
     // XXX if (source->moments == NULL) {
     // XXX     source->moments = pmMomentsAlloc();