diff --git a/sys/net/sixlowpan/mac.c b/sys/net/sixlowpan/mac.c
index 63534d2a3f..4df855564c 100644
--- a/sys/net/sixlowpan/mac.c
+++ b/sys/net/sixlowpan/mac.c
@@ -42,7 +42,7 @@
 #define ENABLE_DEBUG    (0)
 #include "debug.h"
 
-#define RADIO_STACK_SIZE            (MINIMUM_STACK_SIZE + 256)
+#define RADIO_STACK_SIZE            (KERNEL_CONF_STACKSIZE_DEFAULT)
 #define RADIO_RCV_BUF_SIZE          (64)
 #define RADIO_SENDING_DELAY         (1000)