diff --git a/platform/sky/contiki-conf.h b/platform/sky/contiki-conf.h
index 9cb63e3ca..63b3a9c20 100644
--- a/platform/sky/contiki-conf.h
+++ b/platform/sky/contiki-conf.h
@@ -1,5 +1,5 @@
 /* -*- C -*- */
-/* @(#)$Id: contiki-conf.h,v 1.45 2009/04/06 13:31:00 nifi Exp $ */
+/* @(#)$Id: contiki-conf.h,v 1.46 2009/04/06 14:59:49 nifi Exp $ */
 
 #ifndef CONTIKI_CONF_H
 #define CONTIKI_CONF_H
@@ -62,13 +62,13 @@
 #define F_CPU 2457600uL
 
 /* Our clock resolution, this is the same as Unix HZ. */
-#define CLOCK_CONF_SECOND 64
+#define CLOCK_CONF_SECOND 128
 
 #define BAUD2UBR(baud) ((F_CPU/baud))
 
 #ifdef WITH_UIP6
 
-#define RIMEADDR_CONF_SIZE              2
+#define RIMEADDR_CONF_SIZE              8
 
 #define UIP_CONF_LL_802154              1
 #define UIP_CONF_LLH_LEN                0