diff --git a/product/ERP5Type/Core/Folder.py b/product/ERP5Type/Core/Folder.py
index 7e061a4f82bc809a79ae778d7a29ea10edbb15e1..ac764e24cc5bf4f53fac713eb72a4f2b3edbfd58 100644
--- a/product/ERP5Type/Core/Folder.py
+++ b/product/ERP5Type/Core/Folder.py
@@ -1425,7 +1425,7 @@ class Folder(CopyContainer, CMFBTreeFolder, CMFHBTreeFolder, Base, FolderMixIn,
   def contentValues(self, *args, **kw):
     # Returns a list of documents contained in this folder.
     # ( no docstring to prevent publishing )
-    portal_type_id_list = self._getTypesTool().objectIds()
+    portal_type_id_list = self._getTypesTool().listContentTypes()
     filter_kw = kw.pop('filter', None) or {}
     portal_type = kw.pop('portal_type', None)
     if 'portal_type' in filter_kw: