structure comparison functions
diff --git a/skeletons/NumericString.c b/skeletons/NumericString.c
index b0eda2c..a314e51 100644
--- a/skeletons/NumericString.c
+++ b/skeletons/NumericString.c
@@ -42,6 +42,7 @@
 	"NumericString",
 	OCTET_STRING_free,
 	OCTET_STRING_print_utf8,   /* ASCII subset */
+	OCTET_STRING_compare,
 	NumericString_constraint,
 	OCTET_STRING_decode_ber,    /* Implemented in terms of OCTET STRING */
 	OCTET_STRING_encode_der,