diff --git a/product/ERP5/tests/testImmobilisation.py b/product/ERP5/tests/testImmobilisation.py
index 53933d120fd875da29dc091ccd672de2656169e6..2a1ce2f5096cc983f4503e0e20819c2cf16dfccb 100644
--- a/product/ERP5/tests/testImmobilisation.py
+++ b/product/ERP5/tests/testImmobilisation.py
@@ -262,6 +262,9 @@ class TestImmobilisationMixin(TestOrderMixin, ERP5TypeTestCase):
     self.logout()
     self.login('manager')
 
+    get_transaction().commit()
+    self.tic()
+
     simulation_id_list = [r for r in self.getPortal().portal_simulation.objectIds()]
     self.getPortal().portal_simulation.manage_delObjects(simulation_id_list)