diff --git a/docs/users_guide/7.8.1-notes.xml b/docs/users_guide/7.8.1-notes.xml
index 335bb8789e8691f39d7e333e1fc9e9b0c0ee6e96..61c5e5c57ac4fbe02fe39d855277de9f45fac3f2 100644
--- a/docs/users_guide/7.8.1-notes.xml
+++ b/docs/users_guide/7.8.1-notes.xml
@@ -197,6 +197,13 @@
                     GHC >= 7.4 is now required for bootstrapping.
                </para>
            </listitem>
+            <listitem>
+                <para>
+                    GHC can now be built with Clang, and use Clang as the
+                    preprocessor for Haskell code. Only Clang version 3.4svn is
+                    reliably supported.
+               </para>
+           </listitem>
        </itemizedlist>
     </sect3>
   </sect2>