diff --git a/product/ERP5/tests/testERP5Simulation.py b/product/ERP5/tests/testERP5Simulation.py
index c9ee589bd48f3348c752560b6f2bb2f4404556cd..bd2dcfe2db31de4becb399ccc5b4ac2c2374dee5 100644
--- a/product/ERP5/tests/testERP5Simulation.py
+++ b/product/ERP5/tests/testERP5Simulation.py
@@ -52,6 +52,13 @@ class TestERP5SimulationMixin(TestInvoiceMixin):
       if rule.getValidationState() == 'validated':
         rule.invalidate()
     self.validateNewRules()
+    self.setUpBusinessProcess()
+
+  def setUpBusinessProcess(self):
+    business_process = self.portal.business_process_module.erp5_default_business_process
+    pay_business_path = business_process['pay']
+    pay_business_path.setSource('account_module/bank')
+    pay_business_path.setDestination('account_module/bank')
 
   @UnrestrictedMethod
   def createInvoiceTransactionRule(self, resource=None):