diff --git a/reference/pdo_mysql/constants.xml b/reference/pdo_mysql/constants.xml
index fb727f9a21..1d2550c3a5 100644
--- a/reference/pdo_mysql/constants.xml
+++ b/reference/pdo_mysql/constants.xml
@@ -230,6 +230,26 @@ if ($db->getAttribute(PDO::ATTR_DRIVER_NAME) == 'mysql') {
    </listitem>
   </varlistentry>
 
+  <varlistentry xml:id="pdo.constants.mysql-attr-multi-statements">
+   <term>
+    <constant>PDO::MYSQL_ATTR_MULTI_STATEMENTS</constant>
+     (<type>integer</type>)
+   </term>
+   <listitem>
+    <para>
+     Disables multi query execution in both <function>PDO::prepare</function>
+     and <function>PDO::query</function> when set to &false;.
+    </para>
+    <para>
+     Note, this constant can only be used in the <parameter>driver_options</parameter> 
+     array when constructing a new database handle.
+    </para>
+    <para>
+     &version.exists.asof; 5.5.21 and PHP 5.6.5.
+    </para>
+   </listitem>
+  </varlistentry>
+
  </variablelist>
 </section>