diff --git a/product/Coramy/Document/AssortedResource.py b/product/Coramy/Document/AssortedResource.py
index 36c68626a3b336de828a051335a1d18a91040219..efa26642028905365fbf1df7e498174b29bea582 100755
--- a/product/Coramy/Document/AssortedResource.py
+++ b/product/Coramy/Document/AssortedResource.py
@@ -27,6 +27,8 @@
 ##############################################################################
 
 from Products.ERP5.Document.AssortedResource import AssortedResource as ERP5AssortedResource
+from Products.ERP5Type import Permissions, PropertySheet, Constraint, Interface
+from AccessControl import ClassSecurityInfo
 
 class AssortedResource(ERP5AssortedResource):
     """