diff --git a/doc/tutorial/archive/using_namespaces.html b/doc/tutorial/archive/using_namespaces.html
index 19acd8c2d..46e9fe1d8 100644
--- a/doc/tutorial/archive/using_namespaces.html
+++ b/doc/tutorial/archive/using_namespaces.html
@@ -94,7 +94,7 @@
 <pre class="sh_java">
 @Root
 @NamespaceList({
-@Namespace(reference="urn:loc.gov:books")
+@Namespace(reference="urn:loc.gov:books"),
 @Namespace(reference="urn:ISBN:0-395-36341-6", prefix="isbn")
 })
 public class Book {