diff --git a/applications/VK_Client.c b/applications/VK_Client.c
index 3ebc2c5..3dfa611 100644
--- a/applications/VK_Client.c
+++ b/applications/VK_Client.c
@@ -149,6 +149,7 @@ int16_t client_tcp_connect(Cclient_t *client) {
   uint16_t mav_len = 0;
   mavlink_dtu_status_t _status_t = {0};
   _status_t.csq = lte_dev.csq;
+  rt_memcpy(_status_t.sn, lte_dev.iccid, sizeof(_status_t.sn));
   rt_memcpy(_status_t.imei,lte_dev.imei,sizeof(_status_t.imei));
   mavlink_msg_dtu_status_encode(1, MAV_COMP_ID_TELEMETRY_RADIO, &msg,
                                 &_status_t);