diff --git a/mod/assignment/type/uploadsingle/assignment.class.php b/mod/assignment/type/uploadsingle/assignment.class.php
index 51293c6a52069..1fe3befaf5007 100644
--- a/mod/assignment/type/uploadsingle/assignment.class.php
+++ b/mod/assignment/type/uploadsingle/assignment.class.php
@@ -138,6 +138,7 @@ function upload() {
                     }
                 } else {
                     $newsubmission = $this->prepare_new_submission($USER->id);
+                    $newsubmission->timemodified = time();
                     $newsubmission->numfiles = 1;
                     if (insert_record('assignment_submissions', $newsubmission)) {
                         add_to_log($this->course->id, 'assignment', 'upload',