diff --git a/addons/http_routing/views/http_routing_template.xml b/addons/http_routing/views/http_routing_template.xml
index 7e873748e91..b092fc24ca7 100644
--- a/addons/http_routing/views/http_routing_template.xml
+++ b/addons/http_routing/views/http_routing_template.xml
@@ -69,7 +69,7 @@
                     <h1 class="mt-5">Oops! Something went wrong.</h1>
                     <p>Take a look at the error message below.</p>
                 </div>
-                <t t-if="editable or request.session.debug">
+                <t t-if="editable or debug">
                     <t t-call="http_routing.http_error_debug"/>
                 </t>
                 <t t-else="">
@@ -88,7 +88,7 @@
                     <h1 class="mt-5">403: Forbidden</h1>
                     <p>The page you were looking for could not be authorized.</p>
                 </div>
-                    <t t-if="editable or request.session.debug">
+                    <t t-if="editable or debug">
                         <t t-call="http_routing.http_error_debug"/>
                     </t>
                     <t t-else="">
@@ -145,7 +145,6 @@
         <html>
             <head>
                 <title t-esc="status_message">Internal Server Error</title>
-                <t t-set="debug" t-value="True"/>
 
                 <link rel="stylesheet" href="/web/static/lib/bootstrap/css/bootstrap.css"/>
                 <script src="/web/static/lib/jquery/jquery.js" type="text/javascript"/>
diff --git a/addons/website/views/website_templates.xml b/addons/website/views/website_templates.xml
index 70af0cf0701..e69dd50c5c9 100644
--- a/addons/website/views/website_templates.xml
+++ b/addons/website/views/website_templates.xml
@@ -2283,7 +2283,7 @@
     </xpath>
     <xpath expr="//div[@id='error_message']" position="after">
         <div class="container" t-if="view and editable">
-            <div class="alert alert-danger" t-if="debug" role="alert">
+            <div class="alert alert-danger" role="alert">
                 <h4>Template fallback</h4>
                 <p>An error occured while rendering the template <code t-esc="qweb_exception.name"/>.</p>
                 <p>If this error is caused by a change of yours in the templates, you have the possibility to reset the template to its <strong>factory settings</strong>.</p>