diff --git a/product/ERP5/tests/testInvoice.py b/product/ERP5/tests/testInvoice.py
index 96de49df7322b1ccf233fb380bdff99b6757758b..5ff8ec1fb2e113277919319106c95bebb56e43e7 100644
--- a/product/ERP5/tests/testInvoice.py
+++ b/product/ERP5/tests/testInvoice.py
@@ -136,7 +136,7 @@ class TestInvoiceMixin(TestPackingListMixin,
                    self.portal.purchase_packing_list_module,
                    self.portal.portal_simulation,):
       
-      folder.manage_delObjects([x for x in folder.objectIds() if x not in ('organisation_1','organisation_2')])
+      folder.manage_delObjects([x for x in folder.objectIds() if x not in ('organisation_1','organisation_2','ppl_1','ppl_2')])
      
     transaction.commit()
     self.tic()