diff --git a/core/modules/system/templates/install-page.html.twig b/core/modules/system/templates/install-page.html.twig
index d362d22..1d0e479 100644
--- a/core/modules/system/templates/install-page.html.twig
+++ b/core/modules/system/templates/install-page.html.twig
@@ -30,7 +30,7 @@
       {% if title %}
         <h1>{{ title }}</h1>
       {% endif %}
-      {{ page.messages }}
+      {{ page.highlighted }}
       {{ page.content }}
     </main>
 
diff --git a/core/modules/system/templates/maintenance-page.html.twig b/core/modules/system/templates/maintenance-page.html.twig
index f270621..830ec21 100644
--- a/core/modules/system/templates/maintenance-page.html.twig
+++ b/core/modules/system/templates/maintenance-page.html.twig
@@ -41,7 +41,7 @@
       <h1>{{ title }}</h1>
     {% endif %}
 
-    {{ page.messages }}
+    {{ page.highlighted }}
 
     {{ page.content }}
   </main>