diff --git a/openerp/addons/base/ir/ir_attachment.py b/openerp/addons/base/ir/ir_attachment.py
index 9cfd5041e63..42fb05a9dbe 100644
--- a/openerp/addons/base/ir/ir_attachment.py
+++ b/openerp/addons/base/ir/ir_attachment.py
@@ -69,7 +69,7 @@ class ir_attachment(osv.osv):
     def _storage(self, cr, uid, context=None):
         return self.pool['ir.config_parameter'].get_param(cr, SUPERUSER_ID, 'ir_attachment.location', 'file')
 
-    @tools.ormcache_context()
+    @tools.ormcache(skiparg=3)
     def _filestore(self, cr, uid, context=None):
         return tools.config.filestore(cr.dbname)