diff --git a/backup/moodle2/restore_stepslib.php b/backup/moodle2/restore_stepslib.php
index 740c2028a42..d2b1c3a7292 100644
--- a/backup/moodle2/restore_stepslib.php
+++ b/backup/moodle2/restore_stepslib.php
@@ -843,20 +843,12 @@ class restore_groups_structure_step extends restore_structure_step {
     }
 
     public function process_grouping_group($data) {
-        global $DB;
+        global $CFG;
+
+        require_once($CFG->dirroot.'/group/lib.php');
 
         $data = (object)$data;
-
-        $data->groupingid = $this->get_new_parentid('grouping'); // Use new parentid
-        $data->groupid    = $this->get_mappingid('group', $data->groupid); // Get from mappings
-
-        $params = array();
-        $params['groupingid'] = $data->groupingid;
-        $params['groupid']    = $data->groupid;
-
-        if (!$DB->record_exists('groupings_groups', $params)) {
-            $DB->insert_record('groupings_groups', $data);  // No need to set this mapping (no child info nor files)
-        }
+        groups_assign_grouping($this->get_new_parentid('grouping'), $this->get_mappingid('group', $data->groupid), $data->timeadded);
     }
 
     protected function after_execute() {
diff --git a/group/lib.php b/group/lib.php
index 024e81b0ed8..c9e2cc00a3d 100644
--- a/group/lib.php
+++ b/group/lib.php
@@ -634,9 +634,10 @@ function groups_parse_name($format, $groupnumber) {
  *
  * @param int groupingid
  * @param int groupid
+ * @param int $timeadded  The time the group was added to the grouping.
  * @return bool true or exception
  */
-function groups_assign_grouping($groupingid, $groupid) {
+function groups_assign_grouping($groupingid, $groupid, $timeadded = null) {
     global $DB;
 
     if ($DB->record_exists('groupings_groups', array('groupingid'=>$groupingid, 'groupid'=>$groupid))) {
@@ -645,7 +646,11 @@ function groups_assign_grouping($groupingid, $groupid) {
     $assign = new stdClass();
     $assign->groupingid = $groupingid;
     $assign->groupid    = $groupid;
-    $assign->timeadded  = time();
+    if ($timeadded != null) {
+        $assign->timeadded = (integer)$timeadded;
+    } else {
+        $assign->timeadded = time();
+    }
     $DB->insert_record('groupings_groups', $assign);
 
     return true;