diff --git a/admin/settings/grades.php b/admin/settings/grades.php
index 67b6a14a790..220904aac13 100644
--- a/admin/settings/grades.php
+++ b/admin/settings/grades.php
@@ -102,7 +102,7 @@ if (has_capability('moodle/grade:manage', $systemcontext)
         $temp->add(new admin_setting_gradecat_combo('grade_aggregateoutcomes', get_string('aggregateoutcomes', 'grades'),
                     get_string('aggregateoutcomes_help', 'grades'), $defaults, $options));
         $temp->add(new admin_setting_gradecat_combo('grade_aggregatesubcats', get_string('aggregatesubcats', 'grades'),
-                    get_string('aggregatesubcatshelp', 'grades'), $defaults, $options));
+                    get_string('aggregatesubcats_help', 'grades'), $defaults, $options));
 
         $options = array(0 => get_string('none'));
         for ($i=1; $i<=20; $i++) {
diff --git a/grade/edit/tree/category_form.php b/grade/edit/tree/category_form.php
index 4fe36431e9f..a932abeb6be 100644
--- a/grade/edit/tree/category_form.php
+++ b/grade/edit/tree/category_form.php
@@ -72,7 +72,7 @@ class edit_category_form extends moodleform {
         }
 
         $mform->addElement('advcheckbox', 'aggregatesubcats', get_string('aggregatesubcats', 'grades'));
-        $mform->setHelpButton('aggregatesubcats', array('aggregatesubcats', get_string('aggregatesubcats', 'grades'), 'grade'), true);
+        $mform->addHelpButton('aggregatesubcats', 'aggregatesubcats', 'grades');
 
         if ((int)$CFG->grade_aggregatesubcats_flag & 2) {
             $mform->setAdvanced('aggregatesubcats');
diff --git a/lang/en/grades.php b/lang/en/grades.php
index b2d1eea2134..3ba502613fc 100755
--- a/lang/en/grades.php
+++ b/lang/en/grades.php
@@ -49,7 +49,6 @@ $string['aggregateoutcomes_help'] = 'If enabled, outcomes are included in the ag
 $string['aggregatesonly'] = 'Aggregates only';
 $string['aggregatesubcats'] = 'Aggregate including subcategories';
 $string['aggregatesubcats_help'] = 'This setting determines whether grades in subcategories are included in the aggregation.';
-$string['aggregatesubcatshelp'] = 'The aggregation is usually done only with immediate children, it is also possible to aggregate including individual grades in all subcategories excluding other aggregated grades.';
 $string['aggregatesum'] = 'Sum of grades';
 $string['aggregateweightedmean'] = 'Weighted mean of grades';
 $string['aggregateweightedmean2'] = 'Simple weighted mean of grades';
diff --git a/lang/en/help/grade/aggregatesubcats.html b/lang/en/help/grade/aggregatesubcats.html
deleted file mode 100644
index ca82c21a3de..00000000000
--- a/lang/en/help/grade/aggregatesubcats.html
+++ /dev/null
@@ -1,2 +0,0 @@
-<h1>Aggregate including subcategories</h1>
-<p>The aggregation is usually done only with immediate children, it is also possible to aggregate including individual grades in all subcategories excluding other aggregated grades.</p>