diff --git a/core/lib/Drupal/Core/Entity/Display/EntityDisplayInterface.php b/core/lib/Drupal/Core/Entity/Display/EntityDisplayInterface.php
index b5837c7..30a511c 100644
--- a/core/lib/Drupal/Core/Entity/Display/EntityDisplayInterface.php
+++ b/core/lib/Drupal/Core/Entity/Display/EntityDisplayInterface.php
@@ -6,11 +6,12 @@
  */
 
 namespace Drupal\Core\Entity\Display;
+use Drupal\Core\Config\Entity\ConfigEntityInterface;
 
 /**
  * Provides a common interface for entity displays.
  */
-interface EntityDisplayInterface {
+interface EntityDisplayInterface extends ConfigEntityInterface {
 
   /**
    * Creates a duplicate of the EntityDisplay object on a different view mode.