diff --git a/addons/warning/warning.py b/addons/warning/warning.py
index 3a8d9f53fb9..16d29d91758 100644
--- a/addons/warning/warning.py
+++ b/addons/warning/warning.py
@@ -22,6 +22,7 @@
 
 import time
 from osv import fields,osv
+from tools.translate import _
 
 WARNING_MESSAGE = [
                    ('no-message','No Message'),