diff --git a/components/bt/host/nimble/port/src/esp_nimble_main.c b/components/bt/host/nimble/port/src/esp_nimble_main.c
index 1e3e75f8d3..1b596438c9 100644
--- a/components/bt/host/nimble/port/src/esp_nimble_main.c
+++ b/components/bt/host/nimble/port/src/esp_nimble_main.c
@@ -19,7 +19,7 @@ static struct ble_npl_eventq g_eventq_dflt;
 static struct ble_npl_sem ble_hs_stop_sem;
 static struct ble_npl_event ble_hs_ev_stop;
 
-esp_err_t esp_nimble_init()
+esp_err_t esp_nimble_init(void)
 {
 #if !SOC_ESP_NIMBLE_CONTROLLER
     /* Initialize the function pointers for OS porting */
@@ -57,7 +57,7 @@ esp_err_t esp_nimble_enable(void *host_task)
 
 }
 
-esp_err_t esp_nimble_disable()
+esp_err_t esp_nimble_disable(void)
 {
     esp_err_t err = ESP_OK;
     ble_npl_sem_init(&ble_hs_stop_sem, 0);
@@ -86,7 +86,7 @@ esp_err_t esp_nimble_disable()
 
 }
 
-esp_err_t esp_nimble_deinit()
+esp_err_t esp_nimble_deinit(void)
 {
 #if !(SOC_ESP_NIMBLE_CONTROLLER && CONFIG_BT_CONTROLLER_ENABLED)
     ble_npl_eventq_deinit(&g_eventq_dflt);
diff --git a/components/bt/porting/nimble/include/nimble/nimble_port.h b/components/bt/porting/nimble/include/nimble/nimble_port.h
index 3da976fc8a..4746633965 100644
--- a/components/bt/porting/nimble/include/nimble/nimble_port.h
+++ b/components/bt/porting/nimble/include/nimble/nimble_port.h
@@ -43,11 +43,11 @@ int nimble_port_stop(void);
 
 struct ble_npl_eventq *nimble_port_get_dflt_eventq(void);
 
-esp_err_t esp_nimble_init();
+esp_err_t esp_nimble_init(void);
 esp_err_t esp_nimble_enable(void *host_task);
 
-esp_err_t esp_nimble_disable();
-esp_err_t esp_nimble_deinit();
+esp_err_t esp_nimble_disable(void);
+esp_err_t esp_nimble_deinit(void);
 
 
 #ifdef __cplusplus
diff --git a/components/bt/porting/transport/uart/hci_uart.c b/components/bt/porting/transport/uart/hci_uart.c
index 818c8d6c02..16d5076ee1 100644
--- a/components/bt/porting/transport/uart/hci_uart.c
+++ b/components/bt/porting/transport/uart/hci_uart.c
@@ -130,7 +130,7 @@ int hci_uart_config(int port_num, int32_t baud_rate, uint8_t data_bits, uint8_t
     intr_alloc_flags = ESP_INTR_FLAG_IRAM;
 
     printf("set uart pin tx:%d, rx:%d.\n", HCI_UART_TX_PIN, HCI_UART_RX_PIN);
-    printf("set rts:%d, cts:%d.\n", HCI_UART_RTS_PIN, HCI_UART_RTS_PIN);
+    printf("set rts:%d, cts:%d.\n", HCI_UART_RTS_PIN, HCI_UART_CTS_PIN);
     printf("set baud_rate:%d.\n", baud_rate);
 
     ESP_ERROR_CHECK(uart_driver_delete(port_num));