diff --git a/addons/stock/static/src/widgets/json_widget.xml b/addons/stock/static/src/widgets/json_widget.xml
index 08bf10810fc..5872939dc73 100644
--- a/addons/stock/static/src/widgets/json_widget.xml
+++ b/addons/stock/static/src/widgets/json_widget.xml
@@ -35,7 +35,7 @@
         <hr/>
         <table t-if="jsonValue.replenishment_history" class="table table-borderless">
             <tbody>
-                <t t-foreach="jsonValue.replenishment_history" t-key="line" t-as="line">
+                <t t-foreach="jsonValue.replenishment_history" t-key="line.name" t-as="line">
                     <tr>
                         <td><t t-esc="line.name"/></td>
                         <td class="text-end text-nowrap" t-esc="line.quantity + ' ' + line.uom_name"/>