diff --git a/reference/filesystem/functions/unlink.xml b/reference/filesystem/functions/unlink.xml
index ca6c7c66b8..0664f76db0 100644
--- a/reference/filesystem/functions/unlink.xml
+++ b/reference/filesystem/functions/unlink.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
   <refentry id="function.unlink">
    <refnamediv>
@@ -11,6 +11,7 @@
      <methodsynopsis>
       <type>bool</type><methodname>unlink</methodname>
       <methodparam><type>string</type><parameter>filename</parameter></methodparam>
+      <methodparam choice="opt"><type>resource</type><parameter>context</parameter></methodparam>
      </methodsynopsis>
     <para>
      Deletes <parameter>filename</parameter>.  Similar to the Unix C
@@ -23,6 +24,11 @@
       for a listing of which wrappers support <function>unlink</function>.
      </simpara>
     </note>
+    <note>
+     <simpara>
+      The <parameter>context</parameter> parameter was added as of <literal>PHP 5.0.0</literal>.
+     </simpara>
+    </note>
     <para>
      See also <function>rmdir</function> for removing directories.
     </para>