diff --git a/doc/hash.qbk b/doc/hash.qbk
index 39d6d97..b734fb4 100644
--- a/doc/hash.qbk
+++ b/doc/hash.qbk
@@ -6,7 +6,7 @@
         defined types]
     [category higher-order]
     [id hash]
-    [dirname hash]
+    [dirname functional/hash]
     [license
         Distributed under the Boost Software License, Version 1.0.
         (See accompanying file LICENSE_1_0.txt or copy at