diff --git a/skeletons/UTF8String.c b/skeletons/UTF8String.c
index 85f2ccd..3cd574d 100644
--- a/skeletons/UTF8String.c
+++ b/skeletons/UTF8String.c
@@ -22,7 +22,7 @@
 	OCTET_STRING_encode_der,
 	OCTET_STRING_decode_xer_utf8,
 	OCTET_STRING_encode_xer_utf8,
-	0,
+	0, 0,
 	0, /* Use generic outmost tag fetcher */
 	asn_DEF_UTF8String_tags,
 	sizeof(asn_DEF_UTF8String_tags)