diff --git a/login/signup.php b/login/signup.php
index 58a238d7bea..dc85ef973c2 100644
--- a/login/signup.php
+++ b/login/signup.php
@@ -3,6 +3,9 @@
     require_once("../config.php");
     require_once("../auth/$CFG->auth/lib.php");
 
+    //HTTPS is potentially required in this page
+    httpsrequired();
+
     if ($CFG->auth != 'email' and (empty($CFG->auth_user_create) or !(function_exists('auth_user_create'))) ) {
         error("Sorry, you may not use this page.");
     }