diff --git a/reference/lua/setup.xml b/reference/lua/setup.xml
index 5719c36267..ddce793ea8 100644
--- a/reference/lua/setup.xml
+++ b/reference/lua/setup.xml
@@ -7,7 +7,7 @@
  <section xml:id="lua.requirements">
   &reftitle.required;
   <para>
-   To use this extension, you will need Lua installed, available on the Lua homepage &url.lua;
+   To use this extension, you will need Lua installed, available on the <link xlink:href="&url.lua;">Lua homepage</link>
   </para>
  </section>