diff --git a/core/modules/system/system.api.php b/core/modules/system/system.api.php
index 2f98dad..bdacb31 100644
--- a/core/modules/system/system.api.php
+++ b/core/modules/system/system.api.php
@@ -2704,6 +2704,7 @@ function hook_install() {
  *   Optionally, update hooks may return a translated string that will be
  *   displayed to the user after the update has completed. If no message is
  *   returned, no message will be presented to the user.
+ *   @todo Using get_t() in this context broken now. http://drupal.org/node/1916556
  *
  * @see batch
  * @see schemaapi