diff --git a/src/mock/class_addressGenerator.py b/src/mock/class_addressGenerator.py
index 700da33f..7934a187 100644
--- a/src/mock/class_addressGenerator.py
+++ b/src/mock/class_addressGenerator.py
@@ -6,6 +6,8 @@ import logging
 import random
 import threading
 
+from six.moves import queue
+
 from pybitmessage import state
 from pybitmessage import queues