Index: src/main/java/org/apache/maven/plugins/site/webapp/DoxiaFilter.java
===================================================================
--- src/main/java/org/apache/maven/plugins/site/webapp/DoxiaFilter.java	(revision 508801)
+++ src/main/java/org/apache/maven/plugins/site/webapp/DoxiaFilter.java	(working copy)
@@ -145,7 +145,7 @@
             try
             {
                 DocumentRenderer renderer = (DocumentRenderer) documents.get( path );
-                renderer.renderDocument( servletResponse.getWriter(), siteRenderer, context );
+                renderDocument( renderer, servletResponse );
 
                 if ( renderer instanceof ReportDocumentRenderer )
                 {
@@ -179,7 +179,7 @@
                 if ( locateDocuments.containsKey( path ) )
                 {
                     DocumentRenderer renderer = (DocumentRenderer) locateDocuments.get( path );
-                    renderer.renderDocument( servletResponse.getWriter(), siteRenderer, context );
+                    renderDocument( renderer, servletResponse );
                 }
             }
             catch ( RendererException e )
@@ -200,6 +200,14 @@
         }
     }
 
+    // Set the content type of the response and render the document
+    private void renderDocument( DocumentRenderer renderer, ServletResponse response )
+        throws RendererException, IOException
+    {
+        response.setContentType( "text/html; charset=" + context.getOutputEncoding() );
+        renderer.renderDocument( response.getWriter(), siteRenderer, context );
+    }
+
     /**
      * @see javax.servlet.Filter#destroy()
      */