diff --git a/platform/sky/contiki-sky-main.c b/platform/sky/contiki-sky-main.c
index 2fc82795d..6a86bb4fc 100644
--- a/platform/sky/contiki-sky-main.c
+++ b/platform/sky/contiki-sky-main.c
@@ -26,7 +26,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * @(#)$Id: contiki-sky-main.c,v 1.18 2007/11/28 23:28:35 adamdunkels Exp $
+ * @(#)$Id: contiki-sky-main.c,v 1.19 2007/12/16 15:03:35 adamdunkels Exp $
  */
 
 #include <signal.h>
@@ -51,6 +51,8 @@
 #include "net/mac/xmac.h"
 #include "net/mac/nullmac.h"
 
+#include "sys/timesynch.h"
+
 #include "node-id.h"
 
 #include "sys/profile.h"
@@ -139,7 +141,7 @@ main(int argc, char **argv)
 #endif /* WITH_UIP */
   
 /*   printf("Starting %s " */
-/* 	 "($Id: contiki-sky-main.c,v 1.18 2007/11/28 23:28:35 adamdunkels Exp $)\n", __FILE__); */
+/* 	 "($Id: contiki-sky-main.c,v 1.19 2007/12/16 15:03:35 adamdunkels Exp $)\n", __FILE__); */
   leds_on(LEDS_GREEN);
   ds2411_init();
   sensors_light_init();
@@ -193,7 +195,12 @@ main(int argc, char **argv)
   simple_cc2420_init();
   simple_cc2420_set_chan_pan_addr(RF_CHANNEL, panId, 0 /*XXX*/, ds2411_id);
 /*  rime_init(nullmac_init(&simple_cc2420_driver));*/
-  rime_init(xmac_init(&simple_cc2420_driver));
+/*  rime_init(xmac_init(&simple_cc2420_driver));*/
+/*  rime_init(timesynch_init(nullmac_init(&simple_cc2420_driver)));*/
+  rime_init(timesynch_init(xmac_init(&simple_cc2420_driver)));
+
+
+  timesynch_set_authority_level(node_id);
 
   /*  rimeaddr_set_node_addr*/
 #if WITH_UIP