diff --git a/skeletons/RELATIVE-OID.c b/skeletons/RELATIVE-OID.c
index 3d1d415..9efd90d 100644
--- a/skeletons/RELATIVE-OID.c
+++ b/skeletons/RELATIVE-OID.c
@@ -21,6 +21,7 @@
 	"RELATIVE_OID",
 	ASN__PRIMITIVE_TYPE_free,
 	RELATIVE_OID_print,
+	OCTET_STRING_compare,   /* Implemented in terms of opaque comparison */
 	asn_generic_no_constraint,
 	ber_decode_primitive,
 	der_encode_primitive,