diff --git a/src/jrd/dyn_ut_proto.h b/src/jrd/dyn_ut_proto.h
index 1395b5495b..4e237949f5 100644
--- a/src/jrd/dyn_ut_proto.h
+++ b/src/jrd/dyn_ut_proto.h
@@ -37,7 +37,7 @@ void	DYN_UTIL_generate_field_name(Jrd::thread_db*, Jrd::Global*, TEXT*);
 void	DYN_UTIL_generate_field_name(Jrd::thread_db*, Jrd::Global*, Firebird::MetaName&);
 void	DYN_UTIL_generate_constraint_name(Jrd::thread_db*, Jrd::Global*, Firebird::MetaName&);
 SINT64	DYN_UTIL_gen_unique_id(Jrd::thread_db*, Jrd::Global*, SSHORT,
-			const SCHAR*, BLK*);
+							   const SCHAR*, Jrd::jrd_req**);
 bool    DYN_UTIL_is_array(Jrd::thread_db*, Jrd::Global*, const Firebird::MetaName&);
 void	DYN_UTIL_copy_domain(Jrd::thread_db*, Jrd::Global* gbl,
 			const Firebird::MetaName&, const Firebird::MetaName&);