diff --git a/product/ERP5/DeliverySolver/LIFO.py b/product/ERP5/DeliverySolver/LIFO.py
index 6a73afe4c40d3c0229bc86c28d758b11f8cb6dfd..56f10c26ba027f6bf41bb85edef0f33dcfa14f65 100644
--- a/product/ERP5/DeliverySolver/LIFO.py
+++ b/product/ERP5/DeliverySolver/LIFO.py
@@ -34,7 +34,7 @@ from FIFO import FIFO
 
 class LIFO(FIFO):
   """
-  The LIFO solver reduces deliveted quantity by reducing the quantity of
+  The LIFO solver reduces delivered quantity by reducing the quantity of
   simulation movements from the first order.
   """