diff --git a/app/src/app_basic_service/device_version_info_mgr.c b/app/src/app_basic_service/device_version_info_mgr.c
index 5ebf4fc..052fbd1 100644
--- a/app/src/app_basic_service/device_version_info_mgr.c
+++ b/app/src/app_basic_service/device_version_info_mgr.c
@@ -54,7 +54,11 @@ void device_info_read_sn(sn_t *sn) {
   uint32_t    id  = NRF_UICR->CUSTOMER[1];
   static char sn_str[15];
   if ((lot == 0 && id == 0) || lot == 0xffffffff || id == 0xffffffff) {
-    sprintf(sn_str, "%s%02d%03d", CATEGORY, 0, 0);
+    ble_gap_addr_t device_addr = {0};
+    sd_ble_gap_addr_get(&device_addr);
+
+    sprintf(sn_str, "%s%02X%02X%02X", CATEGORY,  device_addr.addr[3], device_addr.addr[4], device_addr.addr[5]);
+
   } else {
     sprintf(sn_str, "%s%02d%03d", CATEGORY, lot, id);
   }