diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index 5ac7e5c3ef6..bcd5763a37e 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -40,11 +40,11 @@
         <td>
             <p>
                 <t t-js="d">
-                    var message = d.message ? d.message : d.error.data.fault_code;
-                    d.html_error = context.engine.tools.html_escape(message)
+                    var message = d.error.data.message || d.error.data.fault_code;
+                    d.error.html_error = context.engine.tools.html_escape(message)
                         .replace(/\n/g, '<br/>');
                 </t>
-                <t t-raw="html_error"/>
+                <t t-raw="error.html_error"/>
             </p>
         </td>
     </tr>