diff --git a/cpu/avr/radio/rf230bb/halbb.c b/cpu/avr/radio/rf230bb/halbb.c
index 6aa991eb6..d37882d45 100644
--- a/cpu/avr/radio/rf230bb/halbb.c
+++ b/cpu/avr/radio/rf230bb/halbb.c
@@ -700,12 +700,12 @@ ISR(TRX24_TX_END_vect)
   rf230_txendwait=0;
 }
 
-extern volatile uint8_t rf230_pending;
+//extern volatile uint8_t rf230_pending;
 /* Frame address has matched ours */
 ISR(TRX24_XAH_AMI_vect)
 {
 //	DEBUGFLOW('8');
-        rf230_pending=1;
+//        rf230_pending=1;
 }
 
 /* CCAED measurement has completed */