diff --git a/src/mibew/libs/common.php b/src/mibew/libs/common.php
index aad3687c..f5f74139 100644
--- a/src/mibew/libs/common.php
+++ b/src/mibew/libs/common.php
@@ -16,7 +16,7 @@
  */
 
 // Prevent Mibew from access to files outside the installation
-@ini_set('open_basedir', dirname(__FILE__) . '/../');
+@ini_set('open_basedir', dirname(dirname(__FILE__)));
 
 require_once(dirname(__FILE__) . '/converter.php');
 require_once(dirname(__FILE__) . '/config.php');