diff --git a/drivers/802.15.4/cc2520.c b/drivers/802.15.4/cc2520.c
index 81bf46f986d..0007f95b0ae 100644
--- a/drivers/802.15.4/cc2520.c
+++ b/drivers/802.15.4/cc2520.c
@@ -54,7 +54,10 @@
 #include "cc2520.h"
 #include "cc2520_arch.h"
 
-#define CC2520_CONF_AUTOACK 1
+/* Auto-ACK can prevent the device from sending packets so do not turn it on.
+ * It enables filtering and the feature is currently broken on this driver.
+ */
+#define CC2520_CONF_AUTOACK 0
 #define WITH_SEND_CCA 1
 
 #define FOOTER_LEN 2