diff --git a/core/modules/user/user.services.yml b/core/modules/user/user.services.yml
index 2f88d6f..722dcad 100644
--- a/core/modules/user/user.services.yml
+++ b/core/modules/user/user.services.yml
@@ -30,7 +30,7 @@ services:
     arguments: ['@plugin.manager.entity', '@current_user']
     tags:
       - { name: theme_negotiator, priority: -50 }
-ActiveTrailSubscriber  theme.negotiator.admin_theme:
+  theme.negotiator.admin_theme:
     class: Drupal\system\Theme\AdminNegotiator
     arguments: ['@current_user', '@config.factory', '@entity.manager']
     tags: