diff --git a/docs/harfbuzz-docs.xml b/docs/harfbuzz-docs.xml
index db04c2f..4c9bcaa 100644
--- a/docs/harfbuzz-docs.xml
+++ b/docs/harfbuzz-docs.xml
@@ -49,7 +49,7 @@
         <ulink role="online-location" url="http://[SERVER]/libharfbuzz/index.html">http://[SERVER]/libharfbuzz/</ulink>.-->
       </releaseinfo>
     </partinfo>
-      
+
     <title>Reference manual</title>
       <chapter id="core-api">
         <title>Core API</title>
@@ -97,6 +97,12 @@
         <xi:include href="xml/hb-directwrite.xml"/>
       </chapter>
 
+      <chapter id="subset-api">
+        <title>Subset API</title>
+        <xi:include href="xml/hb-subset.xml"/>
+      </chapter>
+
+
       <!--chapter id="object-tree">
         <title>Object Hierarchy</title>
          <xi:include href="xml/tree_index.sgml"/>