diff --git a/core/modules/node/templates/node.html.twig b/core/modules/node/templates/node.html.twig
index 6439e1f..b2b56b6 100644
--- a/core/modules/node/templates/node.html.twig
+++ b/core/modules/node/templates/node.html.twig
@@ -74,7 +74,7 @@
  * @ingroup themeable
  */
 #}
-<article class="node--{{ node.id }} {{attributes.class}} "{{ attributes }} role="article">
+<article class="node--{{ node.id }} {{ attributes.class }}"{{ attributes }} role="article">
 
   {{ title_prefix }}
   {% if not page %}
diff --git a/core/themes/bartik/templates/node.html.twig b/core/themes/bartik/templates/node.html.twig
index b62105d..060ff65 100644
--- a/core/themes/bartik/templates/node.html.twig
+++ b/core/themes/bartik/templates/node.html.twig
@@ -71,7 +71,7 @@
  * @ingroup themeable
  */
 #}
-<article class="node--{{ node.id }} {{attributes.class}} "{{ attributes }} role="article">
+<article class="node--{{ node.id }} {{ attributes.class }}"{{ attributes }} role="article">
 
   <header>
     {{ title_prefix }}
@@ -95,7 +95,6 @@
           {{ submitted }}
         </div>
       {% endif %}
-
       {{ content.links }}
     </footer>
   {% endif %}