diff --git a/heart_rate_sensor_protocol.h b/heart_rate_sensor_protocol.h
index 9ea2569..a5cb2b7 100644
--- a/heart_rate_sensor_protocol.h
+++ b/heart_rate_sensor_protocol.h
@@ -61,7 +61,7 @@ typedef enum {
   ify_hrs_cmd_enter_ota             = 13,
   ify_hrs_cmd_read_sn               = 14,
   ify_hrs_cmd_reset                 = 15,
-
+  ify_hrs_cmd_stop_upload_record    = 16,
   ify_hrs_report_heartrate_data     = 101,
   ify_hrs_report_battery_level      = 102,
   ify_hrs_report_low_battey_level   = 103,