diff --git a/mayan/apps/common/tests/mixins.py b/mayan/apps/common/tests/mixins.py
index 3ed0f9638c..378090f070 100644
--- a/mayan/apps/common/tests/mixins.py
+++ b/mayan/apps/common/tests/mixins.py
@@ -1,3 +1,5 @@
+from __future__ import unicode_literals
+
 import os
 
 import psutil