diff --git a/addons/website_sale_link_tracker/i18n/website_sale_link_tracker.pot b/addons/website_sale_link_tracker/i18n/website_sale_link_tracker.pot
index 90ca661db1f..f53e90d2628 100644
--- a/addons/website_sale_link_tracker/i18n/website_sale_link_tracker.pot
+++ b/addons/website_sale_link_tracker/i18n/website_sale_link_tracker.pot
@@ -82,10 +82,3 @@ msgstr ""
 msgid "There isn't any UTM tag detected in orders"
 msgstr ""
 
-#. module: website_sale_link_tracker
-#. openerp-web
-#: code:addons/website_sale_link_tracker/static/src/xml/website_sale_dashboard_utm_chart.xml:5
-#, python-format
-msgid "col-lg-6 col-12"
-msgstr ""
-
diff --git a/addons/website_sale_link_tracker/static/src/xml/website_sale_dashboard_utm_chart.xml b/addons/website_sale_link_tracker/static/src/xml/website_sale_dashboard_utm_chart.xml
index 34c77201c4e..f145c96d8b1 100644
--- a/addons/website_sale_link_tracker/static/src/xml/website_sale_dashboard_utm_chart.xml
+++ b/addons/website_sale_link_tracker/static/src/xml/website_sale_dashboard_utm_chart.xml
@@ -2,7 +2,7 @@
 <templates>
     <t t-extend="website_sale.products_table">
         <t t-jquery=".o_top_margin .row .col-12" t-operation="attributes">
-            <attribute name="class">col-lg-6 col-12</attribute>
+            <attribute name="class" value="col-lg-6 col-12" />
         </t>
         <t t-jquery=".o_top_margin .row" t-operation="append">
             <div class="col-lg-6 col-12 o_dashboard_utms">