diff --git a/change_log.txt b/change_log.txt
index 0cfcb67f..3fd017df 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -6,6 +6,8 @@
     ACP cache if present, add some is_file() checks to avoid possible warnings on filemtime()
     caused by above functions.
     https://github.com/smarty-php/smarty/issues/341
+  - bugfix version 3.1.31 did fail under PHP 5.2
+    https://github.com/smarty-php/smarty/issues/365
 
 19.5.2017
   - change properties $accessMap and $obsoleteProperties from private to protected
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index 0440eb62..4c72f8ce 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -69,7 +69,7 @@ if (!defined('SMARTY_RESOURCE_DATE_FORMAT')) {
  * Load Smarty_Autoloader
  */
 if (!class_exists('Smarty_Autoloader')) {
-    include __DIR__ . '/bootstrap.php';
+    include dirname(__FILE__) . '/bootstrap.php';
 }
 
 /**
@@ -108,7 +108,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '3.1.32-dev-6';
+    const SMARTY_VERSION = '3.1.32-dev-7';
 
     /**
      * define variable scopes
diff --git a/libs/bootstrap.php b/libs/bootstrap.php
index 32096087..7ce07805 100644
--- a/libs/bootstrap.php
+++ b/libs/bootstrap.php
@@ -12,6 +12,6 @@
  * Load and register Smarty Autoloader
  */
 if (!class_exists('Smarty_Autoloader')) {
-    require __DIR__ . '/Autoloader.php';
+    require dirname(__FILE__) . '/Autoloader.php';
 }
 Smarty_Autoloader::register();