diff --git a/mod/feedback/lib.php b/mod/feedback/lib.php
index 9b95d03f3a0..9752180946f 100644
--- a/mod/feedback/lib.php
+++ b/mod/feedback/lib.php
@@ -893,6 +893,9 @@ function feedback_get_incomplete_users($cm,
                                             true)) {
         return false;
     }
+    // Filter users that are not in the correct group/grouping.
+    $allusers = groups_filter_users_by_course_module_visible($cm, $allusers);
+
     $allusers = array_keys($allusers);
 
     //now get all completeds