diff --git a/addons/mail/__openerp__.py b/addons/mail/__openerp__.py
index b20b975f3e68c0eee675580085694b42b321294f..47d731aa4e5fffd03121d2ce69c43ece8df90374 100644
--- a/addons/mail/__openerp__.py
+++ b/addons/mail/__openerp__.py
@@ -54,7 +54,7 @@ The main features are:
     """,
     'author': 'OpenERP SA',
     'website': 'http://www.openerp.com',
-    'depends': ['base', 'base_Hidden'],
+    'depends': ['base', 'base_tools'],
     'data': [
         "wizard/mail_compose_message_view.xml",
         "mail_message_view.xml",