diff --git a/bitcoinlib/config/config.py b/bitcoinlib/config/config.py
index e66bd195..77b256a1 100644
--- a/bitcoinlib/config/config.py
+++ b/bitcoinlib/config/config.py
@@ -22,6 +22,7 @@
 import locale
 import platform
 import configparser
+import enum
 from .opcodes import *
 from pathlib import Path
 from datetime import datetime