diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 1c40743a10..2af27c67da 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -1006,6 +1006,16 @@
     </para>
 </section>
 
+<section id='ref-classes-kernel-yocto'>
+    <title><filename>kernel-yocto.bbclass</filename></title>
+
+    <para>
+        The Yocto Project kernel (<filename>kernel-yocto</filename>) class
+        provides common functionality for building from linux-yocto style
+        kernel source repositories.
+    </para>
+</section>
+
 <section id='ref-classes-mime'>
     <title><filename>mime.bbclass</filename></title>