diff --git a/src/fibad/config_utils.py b/src/fibad/config_utils.py
index 095b75f..6c154f7 100644
--- a/src/fibad/config_utils.py
+++ b/src/fibad/config_utils.py
@@ -1,5 +1,6 @@
 import datetime
 import importlib
+import importlib.util
 import logging
 from pathlib import Path
 from typing import Union