diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index ab744001dafc..35adf869cc1f 100644
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c
@@ -629,7 +629,7 @@ static int ll_setup(struct hci_uart *hu)
 		gpiod_set_value_cansleep(lldev->enable_gpio, 0);
 		msleep(5);
 		gpiod_set_value_cansleep(lldev->enable_gpio, 1);
-		mdelay(100);
+		msleep(100);
 		err = serdev_device_wait_for_cts(serdev, true, 200);
 		if (err) {
 			bt_dev_err(hu->hdev, "Failed to get CTS");