diff --git a/test/doxygen/autodoc.gold b/test/doxygen/autodoc.gold
index 0e70f73..e4d04d9 100644
--- a/test/doxygen/autodoc.gold
+++ b/test/doxygen/autodoc.gold
@@ -1,12 +1,12 @@
 <?xml version="1.0" standalone="yes"?>
-<library-reference id="example_reference"><title>Example Reference</title><header name="boost/example.hpp"><namespace name="example"><class name="example"><purpose>Documentation for class example. </purpose><class name="inner_class"><data-member name="x"><type>int</type></data-member></class><enum name="class_enum"><enumvalue name="enumerator"/></enum><typedef name="documented_type1"><description><para>This type has documentation. </para></description><type>int</type></typedef><typedef name="documented_type2"><purpose>This type has documentation. </purpose><type>long</type></typedef><typedef name="documented_type3"><description><para>This type has documentation. </para></description><type>long double</type></typedef><typedef name="undocumented_type1"><type>short</type></typedef><typedef name="undocumented_type2"><type>double</type></typedef><data-member name="integer"><type>int</type></data-member><data-member name="mutable_integer" specifiers="mutable"><type>int</type></data-member><data-member name="const_integer"><type>const int</type></data-member><data-member name="static_integer" specifiers="static"><type>int</type></data-member><data-member name="static_const_integer" specifiers="static"><type>const int</type></data-member><method-group name="public member functions"><method name="conversion-operator" cv="" specifiers="explicit"><type>int</type></method></method-group><constructor cv="= default"><parameter name=""><paramtype><classname>example</classname> const &amp;</paramtype></parameter></constructor><copy-assignment cv="= delete"><parameter name=""><paramtype><classname>example</classname> const &amp;</paramtype></parameter></copy-assignment></class><struct name="example_template"><template>
+<library-reference id="example_reference"><title>Example Reference</title><header name="boost/example.hpp"><namespace name="example"><class name="example"><purpose>Documentation for class example. </purpose><class name="inner_class"><data-member name="x"><type>int</type></data-member></class><enum name="class_enum"><enumvalue name="enumerator"/></enum><typedef name="documented_type1"><description><para>This type has documentation. </para></description><type>int</type></typedef><typedef name="documented_type2"><purpose>This type has documentation. </purpose><type>long</type></typedef><typedef name="documented_type3"><description><para>This type has documentation. </para></description><type>long double</type></typedef><typedef name="undocumented_type1"><type>short</type></typedef><typedef name="undocumented_type2"><type>double</type></typedef><data-member name="integer"><type>int</type></data-member><data-member name="mutable_integer" specifiers="mutable"><type>int</type></data-member><data-member name="const_integer"><type>const int</type></data-member><data-member name="static_integer" specifiers="static"><type>int</type></data-member><data-member name="static_const_integer" specifiers="static"><type>const int</type></data-member><method-group name="public member functions"><method name="conversion-operator" cv="" specifiers="explicit"><type>int</type></method></method-group><constructor cv="= default"><parameter name=""><paramtype><classname>example</classname> const &amp;</paramtype></parameter></constructor><copy-assignment cv="= delete"><type><classname>example</classname> &amp;</type><parameter name=""><paramtype><classname>example</classname> const &amp;</paramtype></parameter></copy-assignment></class><struct name="example_template"><template>
       <template-type-parameter name="TypeParameter"><purpose><para>A template parameter </para></purpose></template-type-parameter>
       <template-nontype-parameter name="NonTypeParameter"><type>int</type><purpose><para>This is a non-type template parameter </para></purpose></template-nontype-parameter>
       <template-type-parameter name="TypeParameterWithDefault"><default>int</default><purpose><para>This is a template parameter with a default argument </para></purpose></template-type-parameter>
     </template><description><para>Test some doxygen markup</para><para><warning><para>This is just an example.</para></warning>
 Embedded docbook list:</para><para> 
- <orderedlist><listitem><simpara>1</simpara></listitem><listitem><simpara>2</simpara></listitem></orderedlist>
- </para><para><emphasis>Special</emphasis> <emphasis role="bold">Bold</emphasis> <computeroutput>Typewriter</computeroutput> <emphasis>Italics</emphasis> <emphasis>emphasis</emphasis> <computeroutput>parameter</computeroutput> </para><para><itemizedlist>
+<orderedlist><listitem><simpara>1</simpara></listitem><listitem><simpara>2</simpara></listitem></orderedlist>
+</para><para><emphasis>Special</emphasis> <emphasis role="bold">Bold</emphasis> <computeroutput>Typewriter</computeroutput> <emphasis>Italics</emphasis> <emphasis>emphasis</emphasis> <computeroutput>parameter</computeroutput> </para><para><itemizedlist>
 <listitem><para>Arg1 first argument. </para></listitem>
 <listitem><para>Arg2 second argument.</para></listitem>
 </itemizedlist>
@@ -15,13 +15,13 @@ Embedded docbook list:</para><para>
 <listitem><para>Second list item</para></listitem>
 </itemizedlist>
 Line 1<sbr/>
- Line 2</para><para><programlisting>     void foo() {}
+ Line 2</para><para><programlisting>void foo() {}
 </programlisting></para><para>
 </para></description></struct><struct name="specialization_test"><template>
       <template-type-parameter name="T"/>
     </template></struct><struct-specialization name="specialization_test"><template>
       <template-type-parameter name="T"/>
-    </template><specialization><template-arg>T *</template-arg></specialization><method-group name="public member functions"/><constructor><description><para>A constructor. </para></description></constructor><destructor><description><para>A destructor. </para></description></destructor><copy-assignment cv=""><parameter name=""><paramtype>const <classname>specialization_test</classname> &amp;</paramtype></parameter><description><para>An assignment operator. </para></description></copy-assignment></struct-specialization><enum name="namespace_enum"><enumvalue name="enumerator"/></enum><data-member name="namespace_integer"><type>int</type></data-member><data-member name="namespace_static_integer" specifiers="static"><type>int</type></data-member><data-member name="namespace_const_integer"><type>const int</type></data-member><data-member name="namespace_static_const_integer" specifiers="static"><type>const int</type></data-member><function name="namespace_func"><type>int</type><parameter name="i"><paramtype>int</paramtype><description><para>A function parameter </para></description></parameter><parameter name="j"><paramtype>int</paramtype><description><para>Another </para></description></parameter><description><para>
+    </template><specialization><template-arg>T *</template-arg></specialization><method-group name="public member functions"/><constructor><description><para>A constructor. </para></description></constructor><destructor><description><para>A destructor. </para></description></destructor><copy-assignment cv=""><type><emphasis>unspecified</emphasis></type><parameter name=""><paramtype>const <classname>specialization_test</classname> &amp;</paramtype></parameter><description><para>An assignment operator. </para></description></copy-assignment></struct-specialization><enum name="namespace_enum"><enumvalue name="enumerator"/></enum><data-member name="namespace_integer"><type>int</type></data-member><data-member name="namespace_static_integer" specifiers="static"><type>int</type></data-member><data-member name="namespace_const_integer"><type>const int</type></data-member><data-member name="namespace_static_const_integer" specifiers="static"><type>const int</type></data-member><function name="namespace_func"><type>int</type><parameter name="i"><paramtype>int</paramtype><description><para>A function parameter </para></description></parameter><parameter name="j"><paramtype>int</paramtype><description><para>Another </para></description></parameter><description><para>
 
 
 This is a test function. <classname alt="example::example">Link to class</classname> <classname alt="example::example_template">Link to class template</classname> <note><para>This is a note.</para></note>
@@ -30,4 +30,4 @@ This is a test function. <classname alt="example::example">Link to class</classn
           <template-type-parameter name="TypeParameter"><purpose><para>A template parameter </para></purpose></template-type-parameter>
           <template-nontype-parameter name="NonTypeParameter"><type>int</type><purpose><para>This is a non-type template parameter </para></purpose></template-nontype-parameter>
         </template><description><para>Testing a function template. 
-</para></description></function></namespace><macro name="EXAMPLE" kind="functionlike"><macro-parameter name="m"/><purpose>Documentation for macro example. </purpose></macro></header></library-reference>
+</para></description></function></namespace><macro name="EXAMPLE" kind="functionlike"><macro-parameter name="m"/><purpose>Documentation for macro example. </purpose></macro></header></library-reference>
\ No newline at end of file
diff --git a/test/doxygen/boost/example.hpp b/test/doxygen/boost/example.hpp
index acceb69..daead91 100644
--- a/test/doxygen/boost/example.hpp
+++ b/test/doxygen/boost/example.hpp
@@ -149,7 +149,7 @@ namespace example
         /** A destructor. */
         ~specialization_test();
         /** An assignment operator. */
-        specialization_test& operator=(const specialization_test&);
+        detail::unspecified& operator=(const specialization_test&);
     };
 }
 
diff --git a/xsl/doxygen/doxygen2boostbook.xsl b/xsl/doxygen/doxygen2boostbook.xsl
index bb79f27..4f338a2 100644
--- a/xsl/doxygen/doxygen2boostbook.xsl
+++ b/xsl/doxygen/doxygen2boostbook.xsl
@@ -1218,6 +1218,11 @@
         </xsl:attribute>
       </xsl:if>
 
+      <!-- Return type -->
+      <xsl:element name="type">
+        <xsl:apply-templates select="type"/>
+      </xsl:element>
+
       <xsl:call-template name="function.children"/>
     </copy-assignment>
   </xsl:template>