diff --git a/sw/airborne/downlink.c b/sw/airborne/downlink.c
index 3caa3c773c..41407b2aaa 100644
--- a/sw/airborne/downlink.c
+++ b/sw/airborne/downlink.c
@@ -45,3 +45,5 @@ uint8_t telemetry_mode_Ap =TELEMETRY_MODE_AP;
 #endif /** AP */
 
 uint8_t downlink_nb_ovrn;
+uint16_t downlink_nb_bytes;
+uint16_t downlink_nb_msgs;