diff --git a/core/modules/node/node.module b/core/modules/node/node.module
index aa26ce4..de83d5b 100644
--- a/core/modules/node/node.module
+++ b/core/modules/node/node.module
@@ -613,6 +613,9 @@ function template_preprocess_node(&$variables) {
 
   // Add article ARIA role.
   $variables['attributes']['role'] = 'article';
+
+  $variables['title_attributes'] = isset($variables['title_attributes']) ? new Attribute($variables['title_attributes']) : new Attribute();
+  $variables['content_attributes'] = isset($variables['content_attributes']) ? new Attribute($variables['content_attributes']) : new Attribute();
 }
 
 /**