diff --git a/core/lib/Drupal/Core/Entity/EntityManager.php b/core/lib/Drupal/Core/Entity/EntityManager.php
index f9ec78b..00bb0b0 100644
--- a/core/lib/Drupal/Core/Entity/EntityManager.php
+++ b/core/lib/Drupal/Core/Entity/EntityManager.php
@@ -349,7 +349,7 @@ protected function buildBaseFieldDefinitions($entity_type_id) {
     $class = $entity_type->getClass();
 
     // Fail with an exception for config entity types.
-    if (!in_array('Drupal\Core\TypedData\ComplexDataInterface', class_implements($class))) {
+    if (!$entity_type->isSubclassOf('\Drupal\Core\Entity\ContentEntityInterface')) {
       throw new \LogicException(String::format('Getting the base fields is not supported for entity type @type.', array('@type' => $entity_type->getLabel())));
     }