diff --git a/mod/assign/locallib.php b/mod/assign/locallib.php
index b521a10a288..3011f49cbcd 100644
--- a/mod/assign/locallib.php
+++ b/mod/assign/locallib.php
@@ -5253,7 +5253,7 @@ class assign {
 
             // Allow teachers to skip sending notifications.
             if (optional_param('sendstudentnotifications', true, PARAM_BOOL)) {
-                $this->notify_grade_modified($grade);
+                $this->notify_grade_modified($grade, true);
             }
 
             // Save outcomes.