Index: /trunk/Ohana/src/addstar/src/wcatalog.c
===================================================================
--- /trunk/Ohana/src/addstar/src/wcatalog.c	(revision 8000)
+++ /trunk/Ohana/src/addstar/src/wcatalog.c	(revision 8001)
@@ -26,17 +26,17 @@
 
   /* free, initialize data structures */
-  if (catalog[0].Naverage) {
+  if (catalog[0].average != NULL) {
     free (catalog[0].average); 
     catalog[0].Naverage = 0;
   }
-  if (catalog[0].Nmeasure) {
+  if (catalog[0].measure != NULL) {
     free (catalog[0].measure); 
     catalog[0].Nmeasure = 0;
   }
-  if (catalog[0].Nmissing) {
+  if (catalog[0].missing != NULL) {
     free (catalog[0].missing); 
     catalog[0].Nmissing = 0;
   }
-  if (catalog[0].Nsecfilt) {
+  if (catalog[0].secfilt != NULL) {
     free (catalog[0].secfilt); 
     catalog[0].Nsecfilt = 0;
Index: /trunk/Ohana/src/libdvo/src/dvo_catalog.c
===================================================================
--- /trunk/Ohana/src/libdvo/src/dvo_catalog.c	(revision 8000)
+++ /trunk/Ohana/src/libdvo/src/dvo_catalog.c	(revision 8001)
@@ -59,4 +59,9 @@
   if (Naxis == 2) catalog[0].catmode = DVO_MODE_RAW;
   /* don't use Naxis == 2 and split mode! */
+
+  catalog[0].average = NULL;
+  catalog[0].secfilt = NULL;
+  catalog[0].measure = NULL;
+  catalog[0].missing = NULL;
 
   switch (catalog[0].catmode) {