diff -u b/core/modules/views/src/Form/ViewsExposedForm.php b/core/modules/views/src/Form/ViewsExposedForm.php
--- b/core/modules/views/src/Form/ViewsExposedForm.php
+++ b/core/modules/views/src/Form/ViewsExposedForm.php
@@ -77,9 +77,10 @@
     $form['#info'] = array();
     $form['filter'] = array(
       '#type' => 'fieldset',
-      '#title' => t('Filter'),
+      '#title' => t('Filter content'),
       '#collapsible' => TRUE,
       '#collapsed' => FALSE,
+      '#attributes' => array('class' => array('container-inline')),
     );
 
     // Go through each handler and let it generate its exposed widget.
diff -u b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php
--- b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php
+++ b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php
@@ -820,7 +820,7 @@
       $this->valueForm($form, $form_state);
       $form[$value] = $form['value'];
 
-      if (isset($form['filter'][$value]['#title']) && !empty($form['filter'][$value]['#type']) && $form['filter'][$value]['#type'] != 'checkbox') {
+      if (isset($form[$value]['#title']) && !empty($form[$value]['#type']) && $form[$value]['#type'] != 'checkbox') {
         unset($form[$value]['#title']);
       }
 
@@ -829,7 +829,7 @@
       $this->valueForm($form, $form_state);
       $form[$value] = $form['value'];
 
-      if (isset($form[$value]['#title']) && !empty($form[$value]['#type']) && $form[$value]['#type'] != 'checkbox') {
+      if (isset($form['filter'][$value]['#title']) && !empty($form['filter'][$value]['#type']) && $form['filter'][$value]['#type'] != 'checkbox') {
         unset($form[$value]['#title']);
       }