diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index 493ceab..efceeb6 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -1972,6 +1972,7 @@ function template_preprocess_field(&$variables, $hook) {
     'field-name-' . $variables['field_name_css'],
     'field-type-' . $variables['field_type_css'],
     'field-label-' . $element['#label_display'],
+    'clearfix',
   );
 
   // Add a "clearfix" class to the wrapper since we float the label and the