diff --git a/core/sys/rtimer.h b/core/sys/rtimer.h
index 039a5b79a..db4539e36 100644
--- a/core/sys/rtimer.h
+++ b/core/sys/rtimer.h
@@ -48,11 +48,13 @@
  *
  * This file is part of the Contiki operating system.
  *
- * @(#)$Id: rtimer.h,v 1.10 2010/03/23 13:24:38 fros4943 Exp $
+ * @(#)$Id: rtimer.h,v 1.11 2010/03/23 13:35:00 fros4943 Exp $
  */
 #ifndef __RTIMER_H__
 #define __RTIMER_H__
 
+#include "rtimer-arch.h"
+
 #ifndef RTIMER_CLOCK_LT
 typedef unsigned short rtimer_clock_t;
 #define RTIMER_CLOCK_LT(a,b)     ((signed short)((a)-(b)) < 0)
@@ -147,8 +149,6 @@ void rtimer_arch_schedule(rtimer_clock_t t);
 
 #define RTIMER_SECOND RTIMER_ARCH_SECOND
 
-#include "rtimer-arch.h"
-
 #endif /* __RTIMER_H__ */
 
 /** @} */