diff -u b/core/modules/system/system.admin.inc b/core/modules/system/system.admin.inc
--- b/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -227,7 +227,6 @@
  *       - REQUIREMENT_WARNING: The requirement failed with a warning.
  *       - REQUIREMENT_ERROR: The requirement failed with an error.
  *
- * @ingroup themeable
  */
 function template_preprocess_status_report(&$variables) {
   $severities = array(