diff --git a/components/esp_driver_uart/include/driver/uart.h b/components/esp_driver_uart/include/driver/uart.h
index 903bd67059..aeb0176bfd 100644
--- a/components/esp_driver_uart/include/driver/uart.h
+++ b/components/esp_driver_uart/include/driver/uart.h
@@ -47,11 +47,9 @@ typedef struct {
 #endif
     };
     struct {
-#if SOC_UART_SUPPORT_SLEEP_RETENTION
         uint32_t backup_before_sleep: 1;    /*!< If set, the driver will backup/restore the HP UART registers before entering/after exiting sleep mode.
                                                  By this approach, the system can power off HP UART's power domain.
                                                  This can save power, but at the expense of more RAM being consumed */
-#endif
     } flags;                                /*!< Configuration flags */
 } uart_config_t;
 
diff --git a/components/esp_driver_uart/src/uart.c b/components/esp_driver_uart/src/uart.c
index 1cfcb6d343..55e93166d3 100644
--- a/components/esp_driver_uart/src/uart.c
+++ b/components/esp_driver_uart/src/uart.c
@@ -845,6 +845,10 @@ esp_err_t uart_param_config(uart_port_t uart_num, const uart_config_t *uart_conf
     ESP_RETURN_ON_FALSE((uart_config->flow_ctrl < UART_HW_FLOWCTRL_MAX), ESP_FAIL, UART_TAG, "hw_flowctrl mode error");
     ESP_RETURN_ON_FALSE((uart_config->data_bits < UART_DATA_BITS_MAX), ESP_FAIL, UART_TAG, "data bit error");
 
+#if !SOC_UART_SUPPORT_SLEEP_RETENTION
+    ESP_RETURN_ON_FALSE(uart_config->flags.backup_before_sleep == 0, ESP_ERR_NOT_SUPPORTED, UART_TAG, "register back up is not supported");
+#endif
+
     uart_module_enable(uart_num);
 
 #if SOC_UART_SUPPORT_SLEEP_RETENTION && CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP