diff --git a/radio/util/copyright-header.txt b/radio/util/copyright-header.txt
index 84ad4ca2f..3648cb970 100644
--- a/radio/util/copyright-header.txt
+++ b/radio/util/copyright-header.txt
@@ -2,7 +2,7 @@
  * Copyright (C) OpenTX
  *
  * Based on code named
- *   th9x - http://code.google.com/p/th9x 
+ *   th9x - http://code.google.com/p/th9x
  *   er9x - http://code.google.com/p/er9x
  *   gruvin9x - http://code.google.com/p/gruvin9x
  *