diff --git a/core/includes/bootstrap.inc b/core/includes/bootstrap.inc
index 89da4b7..455d7dc 100644
--- a/core/includes/bootstrap.inc
+++ b/core/includes/bootstrap.inc
@@ -55,11 +55,17 @@
 
 /**
  * Role ID for anonymous users; should match what's in the "role" table.
+ *
+ * @deprecated in Drupal 8.0.0, will be removed before Drupal 9.0.0.
+ *   Use ANONYMOUS_ID instead.
  */
 const DRUPAL_ANONYMOUS_RID = 'anonymous';
 
 /**
  * Role ID for authenticated users; should match what's in the "role" table.
+ *
+ * @deprecated in Drupal 8.0.0, will be removed before Drupal 9.0.0.
+ *   Use AUTHENTICATED_ID instead.
  */
 const DRUPAL_AUTHENTICATED_RID = 'authenticated';