diff --git a/reference/mbstring/ini.xml b/reference/mbstring/ini.xml
index 7a650529f7..b961d8b0d6 100644
--- a/reference/mbstring/ini.xml
+++ b/reference/mbstring/ini.xml
@@ -61,8 +61,11 @@
      <row>
       <entry><link linkend="ini.mbstring.func-overload">mbstring.func_overload</link></entry>
       <entry>"0"</entry>
-      <entry>PHP_INI_PERDIR</entry>
-      <entry>PHP_INI_SYSTEM in PHP &lt;= 4.2.3. Available since PHP 4.2.0.</entry>
+      <entry>PHP_INI_SYSTEM</entry>
+      <entry>
+       PHP_INI_SYSTEM in PHP &lt;= 4.2.3; PHP_INI_SYSTEM | PHP_INI_PERDIR from PHP 4.3
+       through 5.2.6. Available since PHP 4.2.0.
+      </entry>
      </row>
      <row>
       <entry><link linkend="ini.mbstring.encoding-translation">mbstring.encoding_translation</link></entry>