diff --git a/core/core.services.yml b/core/core.services.yml
index ef4457d..f867f88 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -290,9 +290,9 @@ services:
     public: false
     tags:
       - { name: backend_overridable }
+  # @deprecated in Drupal 8.0.x and will be removed before 9.0.0. Use
+  #   config.storage.sync instead.
   config.storage.staging:
-    # @deprecated staging is renamed to sync.
-    # @see CONFIG_STAGING_DIRECTORY
     class: Drupal\Core\Config\FileStorage
     factory: Drupal\Core\Config\FileStorageFactory::getSync
   config.storage.sync: