diff --git a/doc/unordered.qbk b/doc/unordered.qbk
index e4f2ce6d..fb3837f4 100644
--- a/doc/unordered.qbk
+++ b/doc/unordered.qbk
@@ -13,7 +13,7 @@
     [license
         Distributed under the Boost Software License, Version 1.0.
         (See accompanying file LICENSE_1_0.txt or copy at
-        [@http://www.boost.org/LICENSE_1_0.txt]
+        [@http://www.boost.org/LICENSE_1_0.txt])
     ]
 ]