diff --git a/backup/moodle2/restore_stepslib.php b/backup/moodle2/restore_stepslib.php
index 917438db1a5..b971552d91c 100644
--- a/backup/moodle2/restore_stepslib.php
+++ b/backup/moodle2/restore_stepslib.php
@@ -3793,7 +3793,7 @@ class restore_activity_competencies_structure_step extends restore_structure_ste
             // Sortorder is ignored by precaution, anyway we should walk through the records in the right order.
             $record = (object) $params;
             $record->ruleoutcome = $data->ruleoutcome;
-            $record->overridegrade = $data->overridegrade;
+            $record->overridegrade = $data->overridegrade ?? 0;
             $coursemodulecompetency = new \core_competency\course_module_competency(0, $record);
             $coursemodulecompetency->create();
         }