diff --git a/project/example/ble/ble_peripheral/app/api/app_task.h b/project/example/ble/ble_peripheral/app/api/app_task.h
index 991aa17..f5d12c1 100644
--- a/project/example/ble/ble_peripheral/app/api/app_task.h
+++ b/project/example/ble/ble_peripheral/app/api/app_task.h
@@ -50,7 +50,7 @@
     }
 
 /// Default Device Name
-#define APP_DFLT_DEVICE_NAME     ("STAIR56E-03")
+#define APP_DFLT_DEVICE_NAME     ("STAIR56E-02")
 #define APP_DFLT_DEVICE_NAME_LEN (sizeof(APP_DFLT_DEVICE_NAME))//must not be greater than APP_DEVICE_NAME_MAX_LEN
 /// Maximal length of the Device Name value
 #define APP_DEVICE_NAME_MAX_LEN  (18)