diff --git a/core/core.events.yml b/core/core.events.yml
index be35ea1..7dcb4dc 100644
--- a/core/core.events.yml
+++ b/core/core.events.yml
@@ -38,7 +38,7 @@ subscribers:
     - finish_response_subscriber:onRespond
     - redirect_response_subscriber:checkRedirectUrl
     - authentication_subscriber:onRespond
-    - callback: ajax_response_subscriber:onResponse
+    - callback: Drupal\Core\EventSubscriber\AjaxResponseSubscriber::onResponse
       priority: -100
   kernel.exception:
     - authentication_subscriber:onException