diff --git a/mod/quiz/report/simplestat/report.php b/mod/quiz/report/simplestat/report.php
index 00b278736c0..acbf0e4d555 100644
--- a/mod/quiz/report/simplestat/report.php
+++ b/mod/quiz/report/simplestat/report.php
@@ -135,7 +135,11 @@ class quiz_report extends quiz_default_report {
         /// Print header to force download
     
             header("Content-Type: application/download\n"); 
-            header("Content-Disposition: attachment; filename=\"$course->shortname $quiz->name.txt\"");
+            header("Content-Disposition: attachment; filename=$course->shortname ".$quiz->name.".txt");
+            header("Expires: 0");
+            header("Cache-Control: must-revalidate, post-check=0,pre-check=0");
+            header("Pragma: public");
+
 
         /// Print names of all the fields