diff --git a/common/autoload.php b/common/autoload.php
index 2c39b1707..d1af61d90 100644
--- a/common/autoload.php
+++ b/common/autoload.php
@@ -32,12 +32,9 @@ date_default_timezone_set(@date_default_timezone_get());
  * Set the default character encoding.
  */
 ini_set('default_charset', 'UTF-8');
-if (function_exists('mb_internal_encoding'))
+if (function_exists('mb_internal_encoding') && function_exists('mb_regex_encoding'))
 {
 	mb_internal_encoding('UTF-8');
-}
-if (function_exists('mb_regex_encoding'))
-{
 	mb_regex_encoding('UTF-8');
 }