diff --git a/product/ERP5/Document/InvoiceRule.py b/product/ERP5/Document/InvoiceRule.py
index a137605a5907476b64c56964eb7745411ce2decb..43d4ee29bc875b9fb6043b1afdae9237f793f852 100755
--- a/product/ERP5/Document/InvoiceRule.py
+++ b/product/ERP5/Document/InvoiceRule.py
@@ -29,7 +29,6 @@
 from AccessControl import ClassSecurityInfo
 from Products.ERP5Type import Permissions, PropertySheet, Constraint, Interface
 from Products.ERP5.Document.Rule import Rule
-from Products.ERP5.MovementGroup import CategoryMovementGroup
 
 from zLOG import LOG