diff --git a/reference/mysql/ini.xml b/reference/mysql/ini.xml
index 01527cc9f3..820ab8decf 100644
--- a/reference/mysql/ini.xml
+++ b/reference/mysql/ini.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <section id="mysql.configuration">
  &reftitle.runtime;
  &extension.runtime;
@@ -30,6 +30,11 @@
       <entry>"-1"</entry>
       <entry>PHP_INI_SYSTEM</entry>
      </row>
+     <row>
+      <entry>mysql.trace_mode</entry>
+      <entry>"Off"</entry>
+      <entry>PHP_INI_ALL</entry>
+     </row>
      <row>
       <entry>mysql.default_port</entry>
       <entry>NULL</entry>
@@ -110,7 +115,22 @@
     </para>
    </listitem>
   </varlistentry>
-   <varlistentry id="ini.mysql.default-port">
+  
+  <varlistentry id="ini.mysql.trace-mode">
+   <term>
+    <parameter>mysql.trace_mode</parameter>
+    <type>boolean</type>
+   </term>
+   <listitem>
+    <para>
+     Trace mode. When <literal>mysql.trace_mode</literal> is enabled, warnings 
+     for table/index scans, non free result sets, and SQL-Errors will be 
+     displayed. (Introduced in PHP 4.3.0)
+    </para>
+   </listitem>
+  </varlistentry>
+
+  <varlistentry id="ini.mysql.default-port">
    <term>
     <parameter>mysql.default_port</parameter>
     <type>string</type>