diff --git a/src/include/gen/ids.h b/src/include/gen/ids.h
index 8cff2243f6..ed39d9c1d2 100644
--- a/src/include/gen/ids.h
+++ b/src/include/gen/ids.h
@@ -236,7 +236,7 @@
 	const USHORT  f_fun_class = 16;
 	const USHORT  f_fun_owner = 17;
 	const USHORT  f_fun_legacy_flag = 18;
-	const USHORT  f_fun_variant_flag = 19;
+	const USHORT  f_fun_invariant_flag = 19;
 
 
 // Relation 15 (RDB$FUNCTION_ARGUMENTS)
diff --git a/src/jrd/names.h b/src/jrd/names.h
index 0ef80e4b18..70d99e796a 100644
--- a/src/jrd/names.h
+++ b/src/jrd/names.h
@@ -252,7 +252,7 @@ NAME("RDB$FUNCTION_BLR", nam_fun_blr)
 NAME("RDB$FUNCTION_SOURCE", nam_fun_source)
 NAME("RDB$FUNCTION_ID", nam_fun_id)
 NAME("RDB$LEGACY_FLAG", nam_legacy_flag)
-NAME("RDB$INVARIANT_FLAG", nam_variant_flag)
+NAME("RDB$INVARIANT_FLAG", nam_invariant_flag)
 NAME("RDB$ARGUMENT_MECHANISM", nam_arg_mechanism)
 NAME("RDB$ARGUMENT_NAME", nam_arg_name)
 
diff --git a/src/jrd/relations.h b/src/jrd/relations.h
index e046152a79..4e51d62336 100644
--- a/src/jrd/relations.h
+++ b/src/jrd/relations.h
@@ -235,7 +235,7 @@ RELATION(nam_funs, rel_funs, ODS_8_0, rel_persistent)
 	FIELD(f_fun_class, nam_class, fld_class, 1, ODS_12_0)
 	FIELD(f_fun_owner, nam_owner, fld_user, 1, ODS_12_0)
 	FIELD(f_fun_legacy_flag, nam_legacy_flag, fld_flag_nullable, 0, ODS_12_0)
-	FIELD(f_fun_variant_flag, nam_variant_flag, fld_flag_nullable, 0, ODS_12_0)
+	FIELD(f_fun_invariant_flag, nam_invariant_flag, fld_flag_nullable, 0, ODS_12_0)
 END_RELATION
 
 // Relation 15 (RDB$FUNCTION_ARGUMENTS)