diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 1264aa5f4a..df46590059 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -2645,6 +2645,22 @@
     </para>
 </section>
 
+<section id='ref-classes-typecheck'>
+    <title><filename>typecheck.bbclass</filename></title>
+
+    <para>
+        The <filename>typecheck</filename> class provides support for
+        validating the values of variables set at the configuration level
+        against their defined types.
+        The OpenEmbedded build system allows you to define the type of a
+        variable using the "type" varflag.
+        Here is an example:
+        <literallayout class='monospaced'>
+     IMAGE_FEATURES[type] = "list"
+        </literallayout>
+    </para>
+</section>
+
 <section id='ref-classes-useradd'>
     <title>Adding Users - <filename>useradd.bbclass</filename></title>