diff --git a/header.php b/header.php
index 2af909f..d20ce2e 100644
--- a/header.php
+++ b/header.php
@@ -94,7 +94,8 @@ $j(function()
 		{
 			showUrlModal(window.location.origin + tmp[1]);
 		}
-	var modal_match = Array(/^http:\/\/<?php echo $_SERVER['HTTP_HOST'] ?>\/.+/);
+	
+	var modal_match = Array(/^http:\/\/<?php echo home_url() ?>\/.+/);
 	
 	var modal_not_match = Array(/wp-admin/);