diff --git a/doc/v2/return_internal_reference.html b/doc/v2/return_internal_reference.html
index c1b62a56..8cbfc167 100644
--- a/doc/v2/return_internal_reference.html
+++ b/doc/v2/return_internal_reference.html
@@ -106,7 +106,8 @@
 
     <h4><a name="return_internal_reference-spec-synopsis"></a>Class template <code>return_internal_reference</code> synopsis</h4>
 <pre>
-namespace boost { namespace python {
+namespace boost { namespace python
+{
    template &lt;std::size_t owner_arg = 1, class Base = default_call_policies&gt;
    struct return_internal_reference : Base
    {