diff --git a/skeletons/UTF8String.h b/skeletons/UTF8String.h
index 1853573..4deec26 100644
--- a/skeletons/UTF8String.h
+++ b/skeletons/UTF8String.h
@@ -18,6 +18,7 @@
 
 asn_struct_print_f UTF8String_print;
 asn_constr_check_f UTF8String_constraint;
+asn_random_fill_f  UTF8String_random_fill;
 
 #define UTF8String_free         OCTET_STRING_free
 #define UTF8String_compare      OCTET_STRING_compare