index e2a80ec..ffb48ea 100644
--- a/runner/master/config.template.php
+++ b/runner/master/config.template.php
@@ -144,6 +144,7 @@ if ($mongodbtesturl = getenv('MONGODBTESTURL')) {

 if (!empty(getenv('EXTTESTURL'))) {
     define('TEST_EXTERNAL_FILES_HTTP_URL', getenv('EXTTESTURL'));
+    define('TEST_EXTERNAL_FILES_HTTPS_URL', getenv('EXTTESTURL'));
 }