diff --git a/documentation/ref-manual/ref-structure.xml b/documentation/ref-manual/ref-structure.xml
index ec89840fd9..1f1c60b46e 100644
--- a/documentation/ref-manual/ref-structure.xml
+++ b/documentation/ref-manual/ref-structure.xml
@@ -157,6 +157,22 @@
         </para>
     </section>
 
+    <section id='structure-meta-selftest'>
+        <title><filename>meta-selftest/</filename></title>
+
+        <para>
+            This directory adds additional recipes and append files
+            used by the OpenEmbedded selftests to verify the behavior
+            of the build system.
+        </para>
+
+        <para>
+            You do not have to add this layer to your
+            <filename>bblayers.conf</filename> file unless you want to run the
+            selftests.
+        </para>
+    </section>
+
     <section id='structure-meta-skeleton'>
         <title><filename>meta-skeleton/</filename></title>