diff --git a/trytond/protocols/sslsocket.py b/trytond/protocols/sslsocket.py
index 271da32a5f..517584fd74 100644
--- a/trytond/protocols/sslsocket.py
+++ b/trytond/protocols/sslsocket.py
@@ -1,5 +1,6 @@
 #This file is part of Tryton.  The COPYRIGHT file at the top level of
 #this repository contains the full copyright notices and license terms.
+from trytond.config import CONFIG
 
 
 class SSLSocket(object):