diff --git a/arch/dev/cc2420/cc2420.c b/arch/dev/cc2420/cc2420.c
index 5cfa00e4a..a1572b0ef 100644
--- a/arch/dev/cc2420/cc2420.c
+++ b/arch/dev/cc2420/cc2420.c
@@ -96,9 +96,6 @@ static const struct output_config output_power[] = {
 
 void cc2420_arch_init(void);
 
-/* XXX hack: these will be made as Chameleon packet attributes */
-rtimer_clock_t cc2420_time_of_arrival, cc2420_time_of_departure;
-
 int cc2420_authority_level_of_sender;
 
 volatile uint8_t cc2420_sfd_counter;
diff --git a/arch/dev/cc2420/cc2420.h b/arch/dev/cc2420/cc2420.h
index 07b578aa4..33135e21c 100644
--- a/arch/dev/cc2420/cc2420.h
+++ b/arch/dev/cc2420/cc2420.h
@@ -102,9 +102,6 @@ int cc2420_get_txpower(void);
  */
 int cc2420_interrupt(void);
 
-/* XXX hack: these will be made as Chameleon packet attributes */
-extern rtimer_clock_t cc2420_time_of_arrival,
-  cc2420_time_of_departure;
 extern int cc2420_authority_level_of_sender;
 
 int cc2420_on(void);