diff --git a/openerp/service/server.py b/openerp/service/server.py
index b6c57fa7325..965b1608e6d 100644
--- a/openerp/service/server.py
+++ b/openerp/service/server.py
@@ -212,6 +212,10 @@ class CommonServer(object):
         try:
             sock.shutdown(socket.SHUT_RDWR)
         except socket.error, e:
+            if e.errno == errno.EBADF:
+                # Werkzeug > 0.9.6 closes the socket itself (see commit
+                # https://github.com/mitsuhiko/werkzeug/commit/4d8ca089)
+                return
             # On OSX, socket shutdowns both sides if any side closes it
             # causing an error 57 'Socket is not connected' on shutdown
             # of the other side (or something), see