structure comparison functions
diff --git a/skeletons/UTF8String.h b/skeletons/UTF8String.h
index 6713252..ca2f0e5 100644
--- a/skeletons/UTF8String.h
+++ b/skeletons/UTF8String.h
@@ -19,6 +19,7 @@
 asn_constr_check_f UTF8String_constraint;
 
 #define UTF8String_free         OCTET_STRING_free
+#define UTF8String_compare      OCTET_STRING_compare
 #define UTF8String_constraint   UTF8String_constraint
 #define UTF8String_decode_ber   OCTET_STRING_decode_ber
 #define UTF8String_encode_der   OCTET_STRING_encode_der