diff --git a/idm.py b/idm.py
index e10a1cd..e149d0f 100644
--- a/idm.py
+++ b/idm.py
@@ -6,6 +6,7 @@
 # This file may be distributed under the terms of the GNU GPLv3 license.
 import threading
 import multiprocessing
+import importlib
 import traceback
 import logging
 import chelper