diff --git a/core/dev/cc2420_const.h b/core/dev/cc2420_const.h
index 0e0a4dbc6..35052429f 100644
--- a/core/dev/cc2420_const.h
+++ b/core/dev/cc2420_const.h
@@ -28,7 +28,7 @@
  *
  */
 
-/* @(#)$Id: cc2420_const.h,v 1.2 2007/01/12 18:18:23 bg- Exp $ */
+/* @(#)$Id: cc2420_const.h,v 1.3 2008/07/02 09:03:49 adamdunkels Exp $ */
 
 #ifndef CC2420_CONST_H
 #define CC2420_CONST_H
@@ -143,6 +143,9 @@ enum cc2420_secctrl0 {
   CC2420_SECCTRL0_TXKEYSEL0		= 0x0000,
   CC2420_SECCTRL0_TXKEYSEL1		= 0x0040,
 
+  CC2420_SECCTRL0_SAKEYSEL0		= 0x0000,
+  CC2420_SECCTRL0_SAKEYSEL1		= 0x0080,
+
   CC2420_SECCTRL0_SEC_CBC_HEAD		= 0x0100,
   CC2420_SECCTRL0_RXFIFO_PROTECTION	= 0x0200,
 };