diff --git a/reference/pcre/constants.xml b/reference/pcre/constants.xml
index 28b1632d37..a97a672004 100644
--- a/reference/pcre/constants.xml
+++ b/reference/pcre/constants.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.14 $ -->
+<!-- $Revision: 1.15 $ -->
 <appendix xml:id="pcre.constants" xmlns="http://docbook.org/ns/docbook">
  &reftitle.constants;
  &extension.constants;
@@ -103,6 +103,15 @@
       since PHP 5.2.0.
      </entry>
     </row>
+    <row>
+     <entry><constant>PREG_BAD_UTF8_OFFSET_ERROR</constant></entry>
+     <entry>
+      Returned by <function>preg_last_error</function> if the offset didn't
+      correspond to the begin of a valid UTF-8 code point (only when running
+      a regex in <link linkend="reference.pcre.pattern.modifiers">UTF-8
+      mode</link>). Available since PHP 5.3.0.
+     </entry>
+    </row>
     <row>
      <entry><constant>PCRE_VERSION</constant></entry>
      <entry>
diff --git a/reference/pcre/functions/preg-last-error.xml b/reference/pcre/functions/preg-last-error.xml
index e1bcb6a2bb..b29ecdaff3 100644
--- a/reference/pcre/functions/preg-last-error.xml
+++ b/reference/pcre/functions/preg-last-error.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
 <refentry xml:id="function.preg-last-error" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>preg_last_error</refname>
@@ -54,6 +54,7 @@ Backtrack limit was exhausted!
     <member><constant>PREG_RECURSION_LIMIT_ERROR</constant> (see also <link
     linkend="ini.pcre.recursion-limit">pcre.recursion_limit</link>)</member>
     <member><constant>PREG_BAD_UTF8_ERROR</constant></member>
+    <member><constant>PREG_BAD_UTF8_OFFSET_ERROR</constant></member> (since PHP 5.3.0)
    </simplelist>
   </para>
  </refsect1>