diff --git a/drivers/serial/uart_bt.c b/drivers/serial/uart_bt.c
index 9e4a4de5930..bb7207cfe2f 100644
--- a/drivers/serial/uart_bt.c
+++ b/drivers/serial/uart_bt.c
@@ -160,7 +160,7 @@ static void uart_bt_poll_out(const struct device *dev, unsigned char c)
 	/** Right now we're discarding data if ring-buf is full. */
 	while (!ring_buf_put(ringbuf, &c, 1)) {
 		if (k_is_in_isr() || !atomic_get(&dev_data->bt.enabled)) {
-			LOG_INF("Ring buffer full, discard %c", c);
+			LOG_WRN_ONCE("Ring buffer full, discard %c", c);
 			break;
 		}