diff --git a/openerp/tools/config.py b/openerp/tools/config.py
index 6b21bda8b4f..588c2dedf9f 100644
--- a/openerp/tools/config.py
+++ b/openerp/tools/config.py
@@ -153,7 +153,7 @@ class configmanager(object):
 
         # WEB
         group = optparse.OptionGroup(parser, "Web interface Configuration")
-        group.add_option("--db-filter", dest="dbfilter", default='.*',
+        group.add_option("--db-filter", dest="dbfilter", my_default='.*',
                          help="Filter listed database", metavar="REGEXP")
         parser.add_option_group(group)