diff --git a/language/predefined/serializable.xml b/language/predefined/serializable.xml
index 2af4eae524..8234bb33cb 100644
--- a/language/predefined/serializable.xml
+++ b/language/predefined/serializable.xml
@@ -25,13 +25,6 @@
     a constructor instead of calling __construct(). If you need to execute the standard
     constructor you may do so in the method.
    </para>
-   <para>
-    Note, that when an old instance of a class that implements this interface
-    now, which had been serialized before the class implemeted the interface, is
-    unserialized, <link linkend="object.wakeup">__wakeup()</link> is called
-    instead of the unserialize method, which might be useful for migration
-    purposes.
-   </para>
   </section>
 <!-- }}} -->