diff --git a/openerp/addons/base/ir/ir_attachment.py b/openerp/addons/base/ir/ir_attachment.py
index 7aacdfee658..1cd9ed94d4c 100644
--- a/openerp/addons/base/ir/ir_attachment.py
+++ b/openerp/addons/base/ir/ir_attachment.py
@@ -21,6 +21,7 @@
 
 import hashlib
 import itertools
+import logging
 import os
 import re