diff --git a/meshtastic/ble_interface.py b/meshtastic/ble_interface.py
index 7b3e24c..a3d076d 100644
--- a/meshtastic/ble_interface.py
+++ b/meshtastic/ble_interface.py
@@ -5,6 +5,7 @@ import atexit
 import logging
 import struct
 import time
+import io
 from threading import Thread
 from typing import List, Optional, Tuple