diff --git a/config.php b/config.php
index 9c67d04f2..d8d72a5c3 100644
--- a/config.php
+++ b/config.php
@@ -229,7 +229,8 @@ define('G5_VISIT_BROWSCAP_USE', false);
 */
 define('G5_IP_DISPLAY', '\\1.♡.\\3.\\4');
 
-if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on') {   //https 통신일때 daum 주소 js
+if ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on') || 
+    (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO']==='https')) {   //https 통신일때 daum 주소 js
     define('G5_POSTCODE_JS', '<script src="https://spi.maps.daum.net/imap/map_js_init/postcode.v2.js"></script>');
 } else {  //http 통신일때 daum 주소 js
     define('G5_POSTCODE_JS', '<script src="http://dmaps.daum.net/map_js_init/postcode.v2.js"></script>');