diff --git a/documentation/poky-ref-manual/ref-features.xml b/documentation/poky-ref-manual/ref-features.xml
index f4d755666d..7d98464126 100644
--- a/documentation/poky-ref-manual/ref-features.xml
+++ b/documentation/poky-ref-manual/ref-features.xml
@@ -28,8 +28,9 @@
         <title>Distro</title>
 
         <para>
-            The items below are valid options for 
-            <filename><link linkend='var-DISTRO_FEATURES'>DISTRO_FEATURES</link></filename>:
+            The items below are features you can use with  
+            <link linkend='var-DISTRO_FEATURES'><filename>DISTRO_FEATURES</filename></link>.
+            This list only represents features as shipped with the Yocto Project metadata:
             <itemizedlist>
                 <listitem><para><emphasis>alsa:</emphasis> ALSA support will be included (OSS compatibility 
                     kernel modules will be installed if available).</para></listitem>
@@ -74,8 +75,9 @@
         <title>Machine</title>
 
         <para>
-            The items below are valid options for 
-            <filename><link linkend='var-MACHINE_FEATURES'>MACHINE_FEATURES</link></filename>:
+            The items below are features you can use with  
+            <link linkend='var-MACHINE_FEATURES'><filename>MACHINE_FEATURES</filename></link>.
+            This list only represents features as shipped with the Yocto Project metadata:
             <itemizedlist>
                 <listitem><para><emphasis>acpi:</emphasis> Hardware has ACPI (x86/x86_64 only)
                     </para></listitem>