diff --git a/appendices/reserved.constants.core.xml b/appendices/reserved.constants.core.xml
index bc3c71df23..79bdedd83f 100644
--- a/appendices/reserved.constants.core.xml
+++ b/appendices/reserved.constants.core.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<!-- EN-Revision: 499c8c5964ac2d43e305266255cfdbb552492488 Maintainer: takagi Status: ready -->
+<!-- EN-Revision: b2fa00ca2e052f87785a7f8b296466edc4e55767 Maintainer: takagi Status: ready -->
 <!-- CREDITS: hirokawa,shimooka,mumumu -->
  <sect2 xml:id="reserved.constants.core" xmlns="http://docbook.org/ns/docbook">
    <title>コアの定義済みの定数</title>
@@ -108,7 +108,8 @@
     <varlistentry xml:id="constant.php-zts">
      <term>
       <constant>PHP_ZTS</constant> 
-      (<type>int</type>)
+      (<type>bool</type>)
+      <constant>ZEND_THREAD_SAFE</constant> &Alias;
      </term>
      <listitem>
       <simpara>
@@ -118,8 +119,9 @@
     </varlistentry>
     <varlistentry xml:id="constant.php-debug">
      <term>
-      <constant>PHP_DEBUG</constant> 
-      (<type>int</type>)
+      <constant>PHP_DEBUG</constant>
+      (<type>bool</type>)
+      <constant>ZEND_DEBUG_BUILD</constant> &Alias;
      </term>
      <listitem>
       <simpara>