diff --git a/grade/report/grader/preferences_form.php b/grade/report/grader/preferences_form.php
index eec1c3238b5..3b89bd15f97 100644
--- a/grade/report/grader/preferences_form.php
+++ b/grade/report/grader/preferences_form.php
@@ -108,8 +108,6 @@ class grader_report_preferences_form extends moodleform {
             if ($canviewhidden) {
                 $preferences['prefrows']['shownumberofgrades'] = $checkbox_default;
             }
-
-            $advanced = array_merge($advanced, array('aggregationposition'));
         }