diff --git a/cpu/mc1322x/contiki-maca.c b/cpu/mc1322x/contiki-maca.c
index 17e975087..6fc554819 100644
--- a/cpu/mc1322x/contiki-maca.c
+++ b/cpu/mc1322x/contiki-maca.c
@@ -295,7 +295,7 @@ PROCESS_THREAD(contiki_maca_process, ev, data)
  	PROCESS_BEGIN();
 
 	while (1) {
-		PROCESS_YIELD();
+		PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
 
 		/* check if there is a request to turn the radio on or off */
 		if(contiki_maca_request_on == 1) {