diff --git a/src/common/connection_handlers.py b/src/common/connection_handlers.py
index f7ee220c8..e3b7067a2 100644
--- a/src/common/connection_handlers.py
+++ b/src/common/connection_handlers.py
@@ -20,6 +20,7 @@
 import os
 import time
 import base64
+import sha
 import socket
 
 from calendar import timegm