diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 3da993f53a..198bfe5470 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -974,6 +974,18 @@
     </para>
 </section>
 
+<section id='ref-classes-insserve'>
+    <title><filename>insserve.bbclass</filename></title>
+
+    <para>
+        The insserve (<filename>insserve</filename>) class
+        uses the <filename>insserv</filename> utility to update the order of
+        symbolic links in <filename>/etc/rc?.d/</filename> within an image
+        based on dependencies specified by LSB headers in the
+        <filename>init.d</filename> scripts themselves.
+    </para>
+</section>
+
 <section id='ref-classes-mime'>
     <title><filename>mime.bbclass</filename></title>