diff --git a/documentation/ref-manual/ref-features.xml b/documentation/ref-manual/ref-features.xml
index b90ba7947d..798e0a2a18 100644
--- a/documentation/ref-manual/ref-features.xml
+++ b/documentation/ref-manual/ref-features.xml
@@ -176,6 +176,12 @@
                     PCMCIA/CompactFlash support.</para></listitem>
                 <listitem><para><emphasis>ppp:</emphasis> Include PPP dialup
                     support.</para></listitem>
+                <listitem><para><emphasis>ptest:</emphasis> Enables building
+                    the package tests where supported by individual recipes.
+                    For more information on package tests, see the
+                    "<ulink url='&YOCTO_DOCS_DEV_URL;#testing-packages-with-ptest'>Testing Packages With ptest</ulink>"
+                    section in the Yocto Project Development Manual.
+                    </para></listitem>
                 <listitem><para><emphasis>smbfs:</emphasis> Include SMB networks
                     client support (for mounting Samba/Microsoft Windows shares
                     on device).</para></listitem>