diff --git a/core/modules/migrate/src/Plugin/PluginEventSubscriber.php b/core/modules/migrate/src/Plugin/PluginEventSubscriber.php
index d503638..89a2fb1 100644
--- a/core/modules/migrate/src/Plugin/PluginEventSubscriber.php
+++ b/core/modules/migrate/src/Plugin/PluginEventSubscriber.php
@@ -83,10 +83,12 @@ public function postRollback(MigrateRollbackEvent $event) {
    */
   public static function getSubscribedEvents() {
     $events = [];
-    $events[MigrateEvents::PRE_IMPORT][] = ['preImport'];
-    $events[MigrateEvents::POST_IMPORT][] = ['postImport'];
-    $events[MigrateEvents::PRE_ROLLBACK][] = ['preRollback'];
-    $events[MigrateEvents::POST_ROLLBACK][] = ['postRollback'];
+    if (class_exists('Drupal\migrate\Event\MigrateEvents')) {
+      $events[MigrateEvents::PRE_IMPORT][] = ['preImport'];
+      $events[MigrateEvents::POST_IMPORT][] = ['postImport'];
+      $events[MigrateEvents::PRE_ROLLBACK][] = ['preRollback'];
+      $events[MigrateEvents::POST_ROLLBACK][] = ['postRollback'];
+    }
 
     return $events;
   }