diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index 9c1cfefb298..bb653b02fd7 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -3067,6 +3067,10 @@ function email_to_user($user, $from, $subject, $messagetext, $messagehtml='', $a
         }
     }
 
+    if (!empty($from->priority)) {
+        $mail->Priority = $from->priority;
+    }
+
     if ($messagehtml && $user->mailformat == 1) { // Don't ever send HTML to users who don't want it
         $mail->IsHTML(true);
         $mail->Encoding = 'quoted-printable';           // Encoding to use