diff --git a/reference/runkit/sandbox.xml b/reference/runkit/sandbox.xml
index 2e6d776889..f1e00b8ab8 100644
--- a/reference/runkit/sandbox.xml
+++ b/reference/runkit/sandbox.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.13 $ -->
+<!-- $Revision: 1.14 $ -->
 <!-- Generated by xml_proto.php v2.2. Found in /scripts directory of phpdoc. -->
 <refentry id="runkit.sandbox">
  <refnamediv>
@@ -128,6 +128,15 @@
       </para>
      </listitem>
     </varlistentry>
+    <varlistentry>
+     <term><parameter>runkit.internal_override</parameter></term>
+     <listitem>
+      <para>
+       Ini option <literal>runkit.internal_override</literal> may be disabled
+       (but not re-enabled) within sandboxes.
+      </para>
+     </listitem>
+    </varlistentry>
    </variablelist>
   </para>