diff --git a/lib/classes/event/course_module_completion_updated.php b/lib/classes/event/course_module_completion_updated.php
index 0d3bef90ab0..b5f2ff2c099 100644
--- a/lib/classes/event/course_module_completion_updated.php
+++ b/lib/classes/event/course_module_completion_updated.php
@@ -60,8 +60,8 @@ class course_module_completion_updated extends base {
      * @return string
      */
     public function get_description() {
-        return "The course module completion requirements were updated by the user with id '$this->userid' for the user " .
-            "with id '$this->relateduserid'.";
+        return "The user with id '$this->userid' updated the completion state for the course module with id '$this->contextinstanceid' " .
+            "for the user with id '$this->relateduserid'.";
     }
 
     /**