diff --git a/CHANGES.md b/CHANGES.md
index ed1074e..580469d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -9,6 +9,7 @@ Note - All hash comments refer to the issue number. Eg. #169 refers to https://g
 ### Fixed
 - Fix places not using the multi-language filter (#433).
 - Fix user IDs in the issue table not being mapped during restore (#449).
+- Fix emails displaying HTML entities encoded (#457).
 
 ### Added
 - You can now choose the course short or full name to display (#415).
diff --git a/classes/task/email_certificate_task.php b/classes/task/email_certificate_task.php
index 1587421..40ee156 100644
--- a/classes/task/email_certificate_task.php
+++ b/classes/task/email_certificate_task.php
@@ -213,7 +213,8 @@ class email_certificate_task extends \core\task\scheduled_task {
                     $subject = get_string('emailstudentsubject', 'customcert', $info);
                     $message = $textrenderer->render($renderable);
                     $messagehtml = $htmlrenderer->render($renderable);
-                    email_to_user($user, fullname($userfrom), $subject, $message, $messagehtml, $tempfile, $filename);
+                    email_to_user($user, fullname($userfrom), html_entity_decode($subject), $message, $messagehtml,
+                        $tempfile, $filename);
                 }
 
                 if ($customcert->emailteachers) {
@@ -224,8 +225,8 @@ class email_certificate_task extends \core\task\scheduled_task {
                     $message = $textrenderer->render($renderable);
                     $messagehtml = $htmlrenderer->render($renderable);
                     foreach ($teachers as $teacher) {
-                        email_to_user($teacher, fullname($userfrom), $subject, $message, $messagehtml, $tempfile,
-                            $filename);
+                        email_to_user($teacher, fullname($userfrom), html_entity_decode($subject), $message, $messagehtml,
+                            $tempfile, $filename);
                     }
                 }
 
@@ -244,8 +245,8 @@ class email_certificate_task extends \core\task\scheduled_task {
                             $emailuser = new \stdClass();
                             $emailuser->id = -1;
                             $emailuser->email = $email;
-                            email_to_user($emailuser, fullname($userfrom), $subject, $message, $messagehtml, $tempfile,
-                                $filename);
+                            email_to_user($emailuser, fullname($userfrom), html_entity_decode($subject), $message,
+                                $messagehtml, $tempfile, $filename);
                         }
                     }
                 }