diff --git a/group/group_form.php b/group/group_form.php
index 740b066951e..4d7b6c4968e 100644
--- a/group/group_form.php
+++ b/group/group_form.php
@@ -47,9 +47,11 @@ class group_form extends moodleform {
 
         $errors = parent::validation($data, $files);
 
+        $textlib = textlib_get_instance();
+
         $name = trim(stripslashes($data['name']));
         if ($data['id'] and $group = get_record('groups', 'id', $data['id'])) {
-            if ($group->name != $name) {
+            if ($textlib->strtolower($group->name) != $textlib->strtolower($name)) {
                 if (groups_get_group_by_name($COURSE->id,  $name)) {
                     $errors['name'] = get_string('groupnameexists', 'group', $name);
                 }
diff --git a/group/grouping_form.php b/group/grouping_form.php
index 161aa0b2621..c0558be66e0 100644
--- a/group/grouping_form.php
+++ b/group/grouping_form.php
@@ -32,9 +32,11 @@ class grouping_form extends moodleform {
 
         $errors = parent::validation($data, $files);
 
+        $textlib = textlib_get_instance();
+
         $name = trim(stripslashes($data['name']));
         if ($data['id'] and $grouping = get_record('groupings', 'id', $data['id'])) {
-            if ($grouping->name != $name) {
+            if ($textlib->strtolower($grouping->name) != $textlib->strtolower($name)) {
                 if (groups_get_grouping_by_name($COURSE->id,  $name)) {
                     $errors['name'] = get_string('groupingnameexists', 'group', $name);
                 }