diff --git a/sw/airborne/arch/sim/radio_control/ppm_arch.h b/sw/airborne/arch/sim/radio_control/ppm_arch.h
index 0bec88d36a..002867e693 100644
--- a/sw/airborne/arch/sim/radio_control/ppm_arch.h
+++ b/sw/airborne/arch/sim/radio_control/ppm_arch.h
@@ -1,6 +1,6 @@
 /*
  * $Id$
- *  
+ *
  * Copyright (C) 2010 The Paparazzi Team
  *
  * This file is part of paparazzi.
@@ -18,14 +18,14 @@
  * You should have received a copy of the GNU General Public License
  * along with paparazzi; see the file COPYING.  If not, write to
  * the Free Software Foundation, 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA. 
+ * Boston, MA 02111-1307, USA.
  */
 
 #ifndef PPM_ARCH_H
 #define PPM_ARCH_H
 
 
-/** 
+/**
  * On tiny (and booz) the ppm counter is running at the same speed as
  * the systic counter. There is no reason for this to be true.
  * Let's add a pair of macros to make it possible for them to be different.
diff --git a/sw/airborne/booz/radio_control/booz_radio_control_joby_9ch.h b/sw/airborne/booz/radio_control/booz_radio_control_joby_9ch.h
index 821cc7686a..1dc080b594 100644
--- a/sw/airborne/booz/radio_control/booz_radio_control_joby_9ch.h
+++ b/sw/airborne/booz/radio_control/booz_radio_control_joby_9ch.h
@@ -1,6 +1,6 @@
 /*
  * $Id$
- *  
+ *
  * Copyright (C) 2008-2009 Antoine Drouin <poinix@gmail.com>
  *
  * This file is part of paparazzi.
@@ -18,7 +18,7 @@
  * You should have received a copy of the GNU General Public License
  * along with paparazzi; see the file COPYING.  If not, write to
  * the Free Software Foundation, 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA. 
+ * Boston, MA 02111-1307, USA.
  */
 
 #ifndef BOOZ_RADIO_CONTROL_JOBY_9CH_H
diff --git a/sw/airborne/booz/radio_control/booz_radio_control_ppm.c b/sw/airborne/booz/radio_control/booz_radio_control_ppm.c
index 897dc1fdd1..0735b4f82f 100644
--- a/sw/airborne/booz/radio_control/booz_radio_control_ppm.c
+++ b/sw/airborne/booz/radio_control/booz_radio_control_ppm.c
@@ -1,6 +1,6 @@
 /*
  * $Id$
- *  
+ *
  * Copyright (C) 2008-2009 Antoine Drouin <poinix@gmail.com>
  *
  * This file is part of paparazzi.
@@ -18,7 +18,7 @@
  * You should have received a copy of the GNU General Public License
  * along with paparazzi; see the file COPYING.  If not, write to
  * the Free Software Foundation, 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA. 
+ * Boston, MA 02111-1307, USA.
  */
 
 #include "booz_radio_control.h"