Index: /branches/eam_branches/ohana.20170822/src/libdvo/src/dvo_convert.c
===================================================================
--- /branches/eam_branches/ohana.20170822/src/libdvo/src/dvo_convert.c	(revision 40259)
+++ /branches/eam_branches/ohana.20170822/src/libdvo/src/dvo_convert.c	(revision 40260)
@@ -1113,4 +1113,5 @@
     tmpImage = ImageInternalTo_##TYPE ((Image *) ftable[0].buffer, Nimage); \
     free (ftable[0].buffer);						\
+    ftable[0].buffer = NULL;						\
     gfits_free_header (ftable->header);					\
     gfits_table_set_Image_##TYPE (ftable, tmpImage, Nimage, TRUE);	\