diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index e8f5a2f72b..21e4623446 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -368,6 +368,20 @@
     </para>
 </section>
 
+<section id='ref-classes-ccache'>
+    <title><filename>ccache.bbclass</filename></title>
+
+    <para>
+        The C/C++ Compiler Cache (<filename>ccache</filename>) class enables
+        this cache for the build.
+        This class is used to give a minor performance boost during the build.
+        However, using the class can lead to unexpected side-effects.
+        Thus, it is recommended that you do not use this class.
+        See <ulink url='http://ccache.samba.org/'></ulink> for information on
+        the C/C++ Compiler Cache.
+    </para>
+</section>
+
 <section id='ref-classes-debian'>
     <title>Debian Renaming - <filename>debian.bbclass</filename></title>