diff --git a/reference/imap/functions/imap-search.xml b/reference/imap/functions/imap-search.xml
index b023a795da..816eb6d808 100644
--- a/reference/imap/functions/imap-search.xml
+++ b/reference/imap/functions/imap-search.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <!-- splitted from ./en/functions/imap.xml, last change in rev 1.2 -->
   <refentry id="function.imap-search">
    <refnamediv>
@@ -16,6 +16,7 @@
       <methodparam><type>resource</type><parameter>imap_stream</parameter></methodparam>
       <methodparam><type>string</type><parameter>criteria</parameter></methodparam>
       <methodparam><type>int</type><parameter>options</parameter></methodparam>
+      <methodparam choice="opt"><type>string</type><parameter>charset</parameter></methodparam>
      </methodsynopsis>
     <para>
      This function performs a search on the mailbox currently opened
@@ -159,6 +160,9 @@
      Valid values for flags are SE_UID, which causes the returned
      array to contain UIDs instead of messages sequence numbers.
     </para>
+    <para>
+     Parameter <parameter>charset</parameter> was added in PHP 4.3.3.
+    </para>
    </refsect1>
   </refentry>
 
diff --git a/reference/imap/functions/imap-sort.xml b/reference/imap/functions/imap-sort.xml
index 0592dfd142..df630c95fe 100644
--- a/reference/imap/functions/imap-sort.xml
+++ b/reference/imap/functions/imap-sort.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <!-- splitted from ./en/functions/imap.xml, last change in rev 1.2 -->
   <refentry id="function.imap-sort">
    <refnamediv>
@@ -15,6 +15,7 @@
       <methodparam><type>int</type><parameter>reverse</parameter></methodparam>
       <methodparam choice="opt"><type>int</type><parameter>options</parameter></methodparam>
       <methodparam choice="opt"><type>string</type><parameter>search_criteria</parameter></methodparam>
+      <methodparam choice="opt"><type>string</type><parameter>charset</parameter></methodparam>
      </methodsynopsis>
     <para>
      Returns an array of message numbers sorted by the given
@@ -78,6 +79,9 @@
       </listitem>
      </itemizedlist>
     </para>
+    <para>
+     Parameter <parameter>charset</parameter> was added in PHP 4.3.3.
+    </para>
    </refsect1>
   </refentry>