diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index 8317aaf8ebe..1ad07f70eb6 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -1492,6 +1492,11 @@ class sale_configuration(osv.osv_memory):
         else:
             vals['delivery'] = False
 
+        if wizard.warning:
+            vals['warning'] = True
+        else:
+            vals['warning'] = False
+
         if wizard.sale_layout:
             vals['sale_layout'] = True
         else: