diff --git a/components/driver/uart.c b/components/driver/uart.c
index 15c4961c8d..9a98fe7a6b 100644
--- a/components/driver/uart.c
+++ b/components/driver/uart.c
@@ -1277,8 +1277,8 @@ esp_err_t uart_driver_install(uart_port_t uart_num, int rx_buffer_size, int tx_b
 {
     esp_err_t r;
     UART_CHECK((uart_num < UART_NUM_MAX), "uart_num error", ESP_FAIL);
-    UART_CHECK((rx_buffer_size > UART_FIFO_LEN), "uart rx buffer length error(>128)", ESP_FAIL);
-    UART_CHECK((tx_buffer_size > UART_FIFO_LEN) || (tx_buffer_size == 0), "uart tx buffer length error(>128 or 0)", ESP_FAIL);
+    UART_CHECK((rx_buffer_size > UART_FIFO_LEN), "uart rx buffer length error", ESP_FAIL);
+    UART_CHECK((tx_buffer_size > UART_FIFO_LEN) || (tx_buffer_size == 0), "uart tx buffer length error", ESP_FAIL);
 #if CONFIG_UART_ISR_IN_IRAM
     if ((intr_alloc_flags & ESP_INTR_FLAG_IRAM) == 0) {
         ESP_LOGI(UART_TAG, "ESP_INTR_FLAG_IRAM flag not set while CONFIG_UART_ISR_IN_IRAM is enabled, flag updated");