diff --git a/product/ERP5OOo/tests/testIngestion.py b/product/ERP5OOo/tests/testIngestion.py
index 0e63666bfc921998a753d0f4d4cb6a8f8c5c9aee..4f6921d613ff5d5a62b892fce12ac0c8e1ae2fa3 100644
--- a/product/ERP5OOo/tests/testIngestion.py
+++ b/product/ERP5OOo/tests/testIngestion.py
@@ -108,6 +108,9 @@ class TestIngestion(ERP5TypeTestCase):
     self.createTools()
     self.setSimulatedNotificationScript()
 
+  def beforeTearDown(self):
+    self.portal.portal_caches.clearAllCache()
+
   def createTools(self):
     """
       Set up missing portal_mailin tool.