--- a/rdf-turtle/index.html	Wed Feb 05 16:46:34 2014 +0000
+++ b/rdf-turtle/index.html	Wed Feb 05 10:05:57 2014 -0800
@@ -376,6 +376,7 @@
 				</ul>
 				<pre class="example"><script type="text/turtle">@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
 @prefix show: <http://example.org/vocab/show/> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
 
 show:218 rdfs:label "That Seventies Show"^^xsd:string .            # literal with XML Schema string datatype
 show:218 rdfs:label "That Seventies Show"^^<http://www.w3.org/2001/XMLSchema#string> . # same as above