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
diff --git a/core/modules/entity_reference/src/Tests/EntityReferenceFormatterTest.php b/core/modules/entity_reference/src/Tests/EntityReferenceFormatterTest.php
index d51da8c..ec67c83 100644
--- a/core/modules/entity_reference/src/Tests/EntityReferenceFormatterTest.php
+++ b/core/modules/entity_reference/src/Tests/EntityReferenceFormatterTest.php
@@ -164,13 +164,13 @@ public function testEntityFormatter() {
     $items = $referencing_entity->get($field_name);
     $build = $items->view(array('type' => $formatter));
 
-    $expected_rendered_name_field = '<div class="field field-entity-test--name field-name-name field-type-string field-label-hidden">
+    $expected_rendered_name_field = '<div class="field field-entity-test--name field-name-name field-type-string field-label-hidden clearfix">
     <div class="field-items">
           <div class="field-item">' . $this->referencedEntity->label() . '</div>
       </div>
 </div>
 ';
-    $expected_rendered_body_field = '<div class="field field-entity-test--body field-name-body field-type-text field-label-above">
+    $expected_rendered_body_field = '<div class="field field-entity-test--body field-name-body field-type-text field-label-above clearfix    ">
       <div class="field-label">Body</div>
     <div class="field-items">
           <div class="field-item"><p>Hello, world!</p></div>
diff --git a/core/modules/system/src/Tests/Entity/EntityViewControllerTest.php b/core/modules/system/src/Tests/Entity/EntityViewControllerTest.php
index 1b4dc6b..f58552e 100644
--- a/core/modules/system/src/Tests/Entity/EntityViewControllerTest.php
+++ b/core/modules/system/src/Tests/Entity/EntityViewControllerTest.php
@@ -48,7 +48,7 @@ protected function setUp() {
    */
   function testEntityViewController() {
     $get_label_markup = function($label) {
-      return '<h1><div class="field field-entity-test--name field-name-name field-type-string field-label-hidden">
+      return '<h1><div class="field field-entity-test--name field-name-name field-type-string field-label-hidden clearfix">
     <div class="field-items">
           <div class="field-item">' . $label . '</div>
       </div>