diff --git a/cpu/msp430/watchdog.c b/cpu/msp430/watchdog.c
index 0020c9bf8..6c2569d85 100644
--- a/cpu/msp430/watchdog.c
+++ b/cpu/msp430/watchdog.c
@@ -28,7 +28,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * @(#)$Id: watchdog.c,v 1.11 2010/10/24 21:10:25 adamdunkels Exp $
+ * @(#)$Id: watchdog.c,v 1.12 2010/11/12 15:54:41 nifi Exp $
  */
 #include <io.h>
 #include <signal.h>
@@ -39,6 +39,7 @@ static int counter = 0;
 #define PRINT_STACK_ON_REBOOT 0
 
 /*---------------------------------------------------------------------------*/
+#if PRINT_STACK_ON_REBOOT
 #ifdef CONTIKI_TARGET_SKY
 static void
 printchar(char c)
@@ -66,7 +67,8 @@ printstring(char *s)
     printchar(*s++);
   }
 }
-#endif
+#endif /* CONTIKI_TARGET_SKY */
+#endif /* PRINT_STACK_ON_REBOOT */
 /*---------------------------------------------------------------------------*/
 interrupt(WDT_VECTOR)
 watchdog_interrupt(void)