diff --git a/adm/admin.head.php b/adm/admin.head.php
index 56e1131c2..90b07d8d7 100644
--- a/adm/admin.head.php
+++ b/adm/admin.head.php
@@ -41,8 +41,6 @@ function print_menu2($key, $no)
 ?>
 
 <script>
-var g5_admin_url = "<?php echo G5_ADMIN_URL; ?>";
-
 var tempX = 0;
 var tempY = 0;
 
diff --git a/head.sub.php b/head.sub.php
index 12e9bee25..00220f503 100644
--- a/head.sub.php
+++ b/head.sub.php
@@ -74,6 +74,9 @@ var g5_bo_table  = "<?php echo isset($bo_table)?$bo_table:''; ?>";
 var g5_sca       = "<?php echo isset($sca)?$sca:''; ?>";
 var g5_editor    = "<?php echo ($config['cf_editor'] && $board['bo_use_dhtml_editor'])?$config['cf_editor']:''; ?>";
 var g5_cookie_domain = "<?php echo G5_COOKIE_DOMAIN ?>";
+<?php if(defined('G5_IS_ADMIN')) { ?>
+var g5_admin_url = "<?php echo G5_ADMIN_URL; ?>";
+<?php } ?>
 </script>
 <script src="<?php echo G5_JS_URL ?>/jquery-1.8.3.min.js"></script>
 <script src="<?php echo G5_JS_URL ?>/jquery.menu.js"></script>