diff --git a/components/freemodbus/serial_slave/modbus_controller/mbc_serial_slave.c b/components/freemodbus/serial_slave/modbus_controller/mbc_serial_slave.c
index 72d753e520..40be7287a7 100644
--- a/components/freemodbus/serial_slave/modbus_controller/mbc_serial_slave.c
+++ b/components/freemodbus/serial_slave/modbus_controller/mbc_serial_slave.c
@@ -95,10 +95,6 @@ static esp_err_t mbc_serial_slave_start(void)
                          (eMBParity)mbs_opts->mbs_comm.parity);
     MB_SLAVE_CHECK((status == MB_ENOERR), ESP_ERR_INVALID_STATE,
             "mb stack initialization failure, eMBInit() returns (0x%x).", status);
-#ifdef CONFIG_FMB_CONTROLLER_SLAVE_ID_SUPPORT
-    status = eMBSetSlaveID(MB_SLAVE_ID_SHORT, TRUE, (UCHAR*)mb_slave_id, sizeof(mb_slave_id));
-    MB_SLAVE_CHECK((status == MB_ENOERR), ESP_ERR_INVALID_STATE, "mb stack set slave ID failure.");
-#endif
     status = eMBEnable();
     MB_SLAVE_CHECK((status == MB_ENOERR), ESP_ERR_INVALID_STATE,
             "mb stack set slave ID failure, eMBEnable() returned (0x%x).", (uint32_t)status);