diff --git a/mod/assignment/type/upload/assignment.class.php b/mod/assignment/type/upload/assignment.class.php
index 17d1da096a9..b62c0807ee4 100644
--- a/mod/assignment/type/upload/assignment.class.php
+++ b/mod/assignment/type/upload/assignment.class.php
@@ -92,7 +92,7 @@ class assignment_upload extends assignment_base {
         }
 
         if ($grade->grade === null and empty($grade->str_feedback)) {   // No grades to show yet
-            if ($this->count_responsefiles($USER->id)) {   // but possibly response files to show  
+            if ($this->count_responsefiles($USER->id)) {   // but possibly response files to show
                 print_heading(get_string('responsefiles', 'assignment', $this->course->teacher), '', 3);
                 $responsefiles = $this->print_responsefiles($USER->id, true);
                 print_simple_box($responsefiles, 'center');