diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index 035960c4..bbb3baf4 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -50,7 +50,7 @@ if (!defined('SMARTY_DIR')) {
 }
 
 if (!defined('SMARTY_CORE_DIR')) {
-    define('SMARTY_CORE_DIR', dirname(__FILE__) . DIRECTORY_SEPARATOR . 'internals' . DIRECTORY_SEPARATOR);
+    define('SMARTY_CORE_DIR', SMARTY_DIR . 'internals' . DIRECTORY_SEPARATOR);
 }
 
 define('SMARTY_PHP_PASSTHRU',   0);