diff --git a/src/modules/px4iofirmware/adc.c b/src/modules/px4iofirmware/adc.c
index 1688d53048..63e563d107 100644
--- a/src/modules/px4iofirmware/adc.c
+++ b/src/modules/px4iofirmware/adc.c
@@ -1,6 +1,6 @@
 /****************************************************************************
  *
- *   Copyright (C) 2012 PX4 Development Team. All rights reserved.
+ *   Copyright (c) 2012 PX4 Development Team. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions