diff --git a/exfat/mkfs/uct.c b/exfat/mkfs/uct.c
index 5f17323..d1deb2d 100644
--- a/exfat/mkfs/uct.c
+++ b/exfat/mkfs/uct.c
@@ -3,7 +3,7 @@
 	Upper Case Table creation code.
 
 	Free exFAT implementation.
-	Copyright (C) 2011-2013  Andrew Nayenko
+	Copyright (C) 2011-2015  Andrew Nayenko
 
 	This program is free software; you can redistribute it and/or modify
 	it under the terms of the GNU General Public License as published by
@@ -23,12 +23,12 @@
 #include "uct.h"
 #include "uctc.h"
 
-static off64_t uct_alignment(void)
+static off_t uct_alignment(void)
 {
 	return get_cluster_size();
 }
 
-static off64_t uct_size(void)
+static off_t uct_size(void)
 {
 	return sizeof(upcase_table);
 }