diff --git a/product/ERP5/bootstrap/erp5_core/ExtensionTemplateItem/portal_components/extension.erp5.InventoryBrain.py b/product/ERP5/bootstrap/erp5_core/ExtensionTemplateItem/portal_components/extension.erp5.InventoryBrain.py
index 1d8d7ede878ea67307793eef544d250d2e176ddb..19d9c17d7f20bc69bd299bf695916c1ba75d6bbb 100644
--- a/product/ERP5/bootstrap/erp5_core/ExtensionTemplateItem/portal_components/extension.erp5.InventoryBrain.py
+++ b/product/ERP5/bootstrap/erp5_core/ExtensionTemplateItem/portal_components/extension.erp5.InventoryBrain.py
@@ -288,6 +288,9 @@ class TrackingListBrain(InventoryListBrain):
   """
   List of aggregated movements
   """
+  def getExplanationValue(self):
+    return self._getObjectByUid(self.delivery_uid)
+
   def getDate(self):
     if not self.date:
       return