diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/EmailDefaultWidget.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/EmailDefaultWidget.php
index 371bc68..ce581df 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/EmailDefaultWidget.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/EmailDefaultWidget.php
@@ -68,6 +68,7 @@ public function settingsSummary() {
     else {
       $summary[] = t('No placeholder');
     }
+    $summary[] = t('Textfield size: @size', array('@size' => $this->getSetting('size')));
 
     return $summary;
   }