diff --git a/reference/spl/book.xml b/reference/spl/book.xml
index a29c6350da..c49d658a2a 100644
--- a/reference/spl/book.xml
+++ b/reference/spl/book.xml
@@ -12,12 +12,6 @@
    The Standard PHP Library (SPL) is a collection of interfaces and classes that are meant to solve
    common problems. 
   </para>
-  <note>
-   <para>
-    Legacy "doxygen" documentation can be found
-    <link xlink:href="&url.spl.doxygen;">here</link>.
-   </para>
-  </note>
  </preface>
 
  &reference.spl.setup;