diff --git a/openerp/http.py b/openerp/http.py
index cb2888db768..c8619e96437 100644
--- a/openerp/http.py
+++ b/openerp/http.py
@@ -963,6 +963,9 @@ class Root(object):
             httprequest.session.logout()
             db = None
 
+        if not db:
+            httprequest.session.db = db_monodb(httprequest)
+
     def setup_lang(self, httprequest):
         if not "lang" in httprequest.session.context:
             lang = httprequest.accept_languages.best or "en_US"