diff --git a/appendices/migration53.xml b/appendices/migration53.xml
index fdaa8c2998..ff5e0697da 100644
--- a/appendices/migration53.xml
+++ b/appendices/migration53.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
+<!-- $Revision: 1.4 $ -->
 <appendix xml:id="migration53" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <title>Migrating from PHP 5.2.x to PHP 5.3.x</title>
  <para>
@@ -1417,6 +1417,31 @@
      <constant>JSON_ERROR_SYNTAX</constant>
     </simpara>
    </listitem>
+   <listitem>
+    <simpara>
+     <constant>JSON_FORCE_OBJECT</constant>
+    </simpara>
+   </listitem>
+   <listitem>
+    <simpara>
+     <constant>JSON_HEX_TAG</constant>
+    </simpara>
+   </listitem>
+   <listitem>
+    <simpara>
+     <constant>JSON_HEX_AMP</constant>
+    </simpara>
+   </listitem>
+   <listitem>
+    <simpara>
+     <constant>JSON_HEX_APOS</constant>
+    </simpara>
+   </listitem>
+   <listitem>
+    <simpara>
+     <constant>JSON_HEX_QUOT</constant>
+    </simpara>
+   </listitem>
   </itemizedlist>
 
   <para><link linkend="book.ldap">LDAP</link>:</para>