diff --git a/features/file-upload.xml b/features/file-upload.xml
index aa5ab00e7d..d288f4622c 100644
--- a/features/file-upload.xml
+++ b/features/file-upload.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.84 $ -->
+<!-- $Revision: 1.85 $ -->
  <chapter id="features.file-upload">
   <title>Handling file uploads</title>
 
@@ -309,6 +309,14 @@ foreach ($_FILES["pictures"]["error"] as $key => $error) {
        </para>
       </listitem>
      </varlistentry>
+     <varlistentry>
+      <term><constant>UPLOAD_ERR_CANT_WRITE</constant></term>
+      <listitem>
+       <para>
+        Value: 7; Failed to write file to disk. Introduced in PHP 5.1.0.
+       </para>
+      </listitem>
+     </varlistentry>
     </variablelist>
    </para>
    <note>