new constraints model

diff --git a/skeletons/UTCTime.c b/skeletons/UTCTime.c
index 7d97117..8b7972c 100644
--- a/skeletons/UTCTime.c
+++ b/skeletons/UTCTime.c
@@ -29,6 +29,7 @@
 	  / sizeof(asn1_DEF_UTCTime_tags[0]),
 	1,	/* Single UNIVERSAL tag may be implicitly overriden */
 	-1,	/* Both ways are fine */
+	0, 0,	/* No members */
 	0	/* No specifics */
 };