diff --git a/backup/util/plan/restore_plan.class.php b/backup/util/plan/restore_plan.class.php
index 88d3f51da32..3f2ce6386da 100644
--- a/backup/util/plan/restore_plan.class.php
+++ b/backup/util/plan/restore_plan.class.php
@@ -181,7 +181,7 @@ class restore_plan extends base_plan implements loggable {
             );
 
             if ($this->controller->is_samesite()) {
-                $otherarray['original_course_id'] = $this->controller->get_info()->original_course_id;
+                $otherarray['originalcourseid'] = $this->controller->get_info()->original_course_id;
             }
 
             // Trigger a course restored event.
diff --git a/lib/classes/event/course_restored.php b/lib/classes/event/course_restored.php
index d15be06771f..7b72e4cadda 100644
--- a/lib/classes/event/course_restored.php
+++ b/lib/classes/event/course_restored.php
@@ -37,7 +37,7 @@ defined('MOODLE_INTERNAL') || die();
  *      - int mode: execution mode.
  *      - string operation: what operation are we performing?
  *      - boolean samesite: true if restoring to same site.
- *      - int original_course_id: the id of the course the course being restored, only included if samesite is true
+ *      - int originalcourseid: the id of the course the course being restored, only included if samesite is true
  * }
  *
  * @package    core
@@ -73,9 +73,9 @@ class course_restored extends base {
     public function get_description() {
         $retstring = "The user with id '$this->userid' restored the course with id '$this->courseid'.";
 
-        if (isset($this->other['original_course_id'])) {
-            $originalcourseid = $this->other['original_course_id'];
-            $retstring = "The user with id '$this->userid' restored old course with id " . 
+        if (isset($this->other['originalcourseid'])) {
+            $originalcourseid = $this->other['originalcourseid'];
+            $retstring = "The user with id '$this->userid' restored old course with id " .
                 "'$originalcourseid' to a new course with id '$this->courseid'.";
         }