diff --git a/core/lib/Drupal/Core/Config/ConfigImporter.php b/core/lib/Drupal/Core/Config/ConfigImporter.php
index 5cc1a95..7501565 100644
--- a/core/lib/Drupal/Core/Config/ConfigImporter.php
+++ b/core/lib/Drupal/Core/Config/ConfigImporter.php
@@ -8,6 +8,7 @@
 namespace Drupal\Core\Config;
 
 use Drupal\Core\Config\ConfigEvents;
+use Drupal\Core\Config\Entity\ConfigStorageControllerInterface;
 use Drupal\Core\DependencyInjection\DependencySerialization;
 use Drupal\Core\Lock\LockBackendInterface;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
@@ -315,7 +316,8 @@ protected function importInvokeOwner($op, $name) {
       }
 
       $method = 'import' . ucfirst($op);
-      $handled_by_module = $this->configManager->getEntityManager()->getStorageController($entity_type)->$method($name, $new_config, $old_config);
+      $entity_storage = $this->configManager->getEntityManager()->getStorageController($entity_type);
+      $handled_by_module = $entity_storage instanceof ConfigStorageControllerInterface ? $entity_storage->$method($name, $new_config, $old_config) : FALSE;
     }
     if (!empty($handled_by_module)) {
       $this->setProcessed($op, $name);