diff --git a/mayan/apps/smart_settings/classes.py b/mayan/apps/smart_settings/classes.py
index a95d2fbf1b..374deb6f6f 100644
--- a/mayan/apps/smart_settings/classes.py
+++ b/mayan/apps/smart_settings/classes.py
@@ -1,5 +1,6 @@
 from __future__ import unicode_literals
 
+import errno
 from importlib import import_module
 import logging
 import os