diff --git a/addons/mail_group/views/portal_templates.xml b/addons/mail_group/views/portal_templates.xml
index c0938cbe67a..49f6d0783a2 100644
--- a/addons/mail_group/views/portal_templates.xml
+++ b/addons/mail_group/views/portal_templates.xml
@@ -215,7 +215,7 @@
                 </a>
             </p>
             <div class="o_mg_link_content d-none row justify-content-center">
-                <div class="mx-4 my-3 text-center o_mg_attachment" t-foreach="attachments" t-as="attachment" t-key="attachment_index">
+                <div class="mx-4 my-3 text-center o_mg_attachment" t-foreach="attachments" t-as="attachment">
                     <t t-if="attachment.access_token">
                         <a t-attf-href="/web/content/#{attachment.id}?download=true&amp;access_token=#{attachment.access_token}" target="_blank">
                             <div class="oe_attachment_embedded o_image" t-att-title="attachment.name" t-att-data-mimetype="attachment.mimetype" t-attf-data-src="/web/image/#{attachment.id}/100x80?access_token=#{attachment.access_token}"/>
diff --git a/addons/portal_rating/views/rating_templates.xml b/addons/portal_rating/views/rating_templates.xml
index 78f8b39a49f..a66bdd0dfb5 100644
--- a/addons/portal_rating/views/rating_templates.xml
+++ b/addons/portal_rating/views/rating_templates.xml
@@ -24,13 +24,13 @@
                 </small>
             </t>
             <t t-else="">
-                <t t-foreach="range(0, val_integer)" t-as="num" t-key="num_index">
+                <t t-foreach="range(0, val_integer)" t-as="num">
                     <i class="fa fa-star" role="img"></i>
                 </t>
                 <t t-if="val_decimal">
                     <i class="fa fa-star-half-o" role="img"></i>
                 </t>
-                <t t-foreach="range(0, empty_star)" t-as="num" t-key="num_index">
+                <t t-foreach="range(0, empty_star)" t-as="num">
                     <i class="fa fa-star-o" role="img"></i>
                 </t>
                 <small class="text-muted ms-1">