diff --git a/core/themes/stable/templates/misc/progress-bar.html.twig b/core/themes/stable/templates/misc/progress-bar.html.twig
index 7b67afe..dfda480 100644
--- a/core/themes/stable/templates/misc/progress-bar.html.twig
+++ b/core/themes/stable/templates/misc/progress-bar.html.twig
@@ -11,7 +11,7 @@
  * - message: A string containing information to be displayed.
  */
 #}
-<div class="progress" data-drupal-progress>
+<div class="progress cleafix" data-drupal-progress>
   {% if label %}
     <div class="progress__label">{{ label }}</div>
   {% endif %}