diff --git a/reference/url/functions/parse-url.xml b/reference/url/functions/parse-url.xml
index 65fd892496..6e789d9e8a 100644
--- a/reference/url/functions/parse-url.xml
+++ b/reference/url/functions/parse-url.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.10 $ -->
+<!-- $Revision: 1.11 $ -->
 <!-- splitted from ./en/functions/url.xml, last change in rev 1.2 -->
 <refentry id="function.parse-url">
  <refnamediv>
@@ -131,6 +131,13 @@ Array
     This function doesn't work with relative URLs.
    </para>
   </note>
+  <note>
+   <para>
+     <function>parse_url</function> is intended specifically for the purpose of parsing URLs and not URIs.
+      However, to comply with PHP's backwards compatibility requirenments it makes an exception for the
+      file:// scheme where tripple slashes (file:///...) are allowed. For any other scheme this is invalid.
+   </para>
+  </node>
  </refsect1>
 
  <refsect1 role="seealso">