diff --git a/product/ERP5/Document/Person.py b/product/ERP5/Document/Person.py
index 8cced3a55d33fb018c49a55be4bba0d08a3fe108..e49620dc767c0043fcadbf17fa6f01806a9deee5 100644
--- a/product/ERP5/Document/Person.py
+++ b/product/ERP5/Document/Person.py
@@ -180,8 +180,8 @@ class Person(XMLObject):
       self._setReference(value)
       self.reindexObject()
       # invalid the cache for ERP5Security
-      clearCache()
-    
+      clearCache(cache_factory_list=('erp5_core_short', ))
+
     security.declareProtected(Permissions.SetOwnPassword, 'setPassword')
     def setPassword(self, value) :
       """