Index: trunk/Ohana/src/libfits/matrix/F_compress_M.c
===================================================================
--- trunk/Ohana/src/libfits/matrix/F_compress_M.c	(revision 16140)
+++ trunk/Ohana/src/libfits/matrix/F_compress_M.c	(revision 16252)
@@ -46,4 +46,6 @@
   char *out = NULL;
   char *zdata = NULL;
+
+  Noptions = 0;
 
   // is ZIMAGE present?