diff --git a/product/ERP5Type/Base.py b/product/ERP5Type/Base.py
index ae1b9f6429c8cc234c4395a495a34ed7c7800fd3..1a9e1f03415306cd61de7f61a19ec23718b742d4 100644
--- a/product/ERP5Type/Base.py
+++ b/product/ERP5Type/Base.py
@@ -2713,12 +2713,31 @@ class Base( CopyContainer,
       self.activate(group_method_id='portal_catalog/catalogObjectList', 
                     alternate_method_id='alternateReindexObject',
                     group_id=group_id,
-                    serialization_tag=self.getPath() + '%',
+                    serialization_tag=self.getRootDocument(),
                     **activate_kw).immediateReindexObject(**kw)
 
   security.declarePublic('recursiveReindexObject')
   recursiveReindexObject = reindexObject
 
+  def getRootDocument(self):
+    result = self.getRootDocumentValue()
+    if result is not None:
+      result = result.getPath()
+    return result
+    
+  def getRootDocumentValue(self):
+    result = None
+    parent_value = self.getParentValue()
+    if parent_value is not None:
+      parent_id = parent_value.getId()
+      if parent_id.endswith('_module') or parent_id.startswith('portal_'):
+        result = self
+      else:
+        getRootDocumentValue = getattr(parent_value, 'getRootDocumentValue', None)
+        if getRootDocumentValue is not None:
+          result = getRootDocumentValue()
+    return result
+
   security.declareProtected( Permissions.AccessContentsInformation, 'getIndexableChildValueList' )
   def getIndexableChildValueList(self):
     """
diff --git a/product/ERP5Type/Core/Folder.py b/product/ERP5Type/Core/Folder.py
index 70d37edae7fba11e7c97ae9ec9b4a67b32b886b8..d0a0c19375e6ab603671e5f125c46ea09690f2ab 100644
--- a/product/ERP5Type/Core/Folder.py
+++ b/product/ERP5Type/Core/Folder.py
@@ -1101,7 +1101,7 @@ class Folder(CopyContainer, CMFBTreeFolder, CMFHBTreeFolder, Base, FolderMixIn,
                     expand_method_id='getIndexableChildValueList',
                     alternate_method_id='alternateReindexObject',
                     group_id=group_id,
-                    serialization_tag=self.getPath() + '%',
+                    serialization_tag=self.getRootDocument(),
                     **activate_kw).recursiveImmediateReindexObject(**kw)
 
   security.declareProtected( Permissions.AccessContentsInformation,