diff --git a/openerp/service/wsgi_server.py b/openerp/service/wsgi_server.py
index e9e391d1906..f0f92494e1a 100644
--- a/openerp/service/wsgi_server.py
+++ b/openerp/service/wsgi_server.py
@@ -32,8 +32,7 @@ import StringIO
 
 import errno
 import logging
-import os
-import signal
+import platform
 import socket
 import sys
 import threading