diff --git a/utils/rtl-sdr/Makefile b/utils/rtl-sdr/Makefile
index 962f152bc..a4024cef1 100644
--- a/utils/rtl-sdr/Makefile
+++ b/utils/rtl-sdr/Makefile
@@ -1,4 +1,4 @@
-# 
+#
 # Copyright (C) 2013 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.