diff --git a/utils/ap51-flash/Makefile b/utils/ap51-flash/Makefile
index 30868ae23..ae5a8c3d9 100644
--- a/utils/ap51-flash/Makefile
+++ b/utils/ap51-flash/Makefile
@@ -1,4 +1,4 @@
-# 
+#
 # Copyright (C) 2010-2011 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.