diff --git a/product/ERP5/Tool/TrashTool.py b/product/ERP5/Tool/TrashTool.py
index d5df6bae54c91be3decd51375066b7d50993faac..624c3d598b618411a9e2f0d94fdba853388f89fd 100644
--- a/product/ERP5/Tool/TrashTool.py
+++ b/product/ERP5/Tool/TrashTool.py
@@ -103,7 +103,18 @@ class TrashTool(BaseTool):
           backup = connection.importFile(copy)
           try:
             backup.isIndexable = ConstantGetter('isIndexable', value=False)
-            backup_object_container._setObject(object_id, backup)
+            try:
+              # the isIndexable setting above avoids the recursion of
+              # manage_afterAdd on
+              # Products.ERP5Type.CopySupport.CopySupport.manage_afterAdd()
+              # but not on event subscribers, so we need to suppress_events,
+              # otherwise subobjects will be reindexed
+              backup_object_container._setObject(object_id, backup,
+                                                 suppress_events=True)
+            except TypeError:
+              # BACK: On Zope 2.8. _setObject does not accept "suppress_events"
+              # remove when we drop support
+              backup_object_container._setObject(object_id, backup)
           except AttributeError:
             # XXX we can go here due to formulator because attribute field_added
             # doesn't not exists on parent if it is a Trash Folder and not a Form