1 files changed, 1 insertions, 0 deletions
diff --git a/lv2/patch/patch.ttl b/lv2/patch/patch.ttl
index 3ccd840..dccdfd1 100644
--- a/lv2/patch/patch.ttl
+++ b/lv2/patch/patch.ttl
@@ -398,6 +398,7 @@ can present appropriate controls.  For example:</p>
 @prefix eg:   &lt;http://example.org/&gt; .
 @prefix rdf:  &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt; .
 @prefix rdfs: &lt;http://www.w3.org/2000/01/rdf-schema#&gt; .
+@prefix xsd:  &lt;http://www.w3.org/2001/XMLSchema#&gt; .
 
 eg:title
     a rdf:Property ;