diff --git a/documentation/poky-ref-manual/ref-variables.xml b/documentation/poky-ref-manual/ref-variables.xml
index 2ea1122e92..89c7fbd4fe 100644
--- a/documentation/poky-ref-manual/ref-variables.xml
+++ b/documentation/poky-ref-manual/ref-variables.xml
@@ -1868,6 +1868,16 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
             </glossdef>
         </glossentry>
 
+        <glossentry id='var-SDKIMAGE_FEATURES'><glossterm>SDKIMAGE_FEATURES</glossterm>
+            <glossdef>
+                <para>Equivalent to 
+                <filename><link linkend='var-IMAGE_FEATURES'>IMAGE_FEATURES</link></filename>.
+                However, this variable applies to the SDK generated from an image using 
+                <filename>bitbake -c populate_sdk imagename</filename>).
+                </para>
+            </glossdef>
+        </glossentry>
+
         <glossentry id='var-SECTION'><glossterm>SECTION</glossterm>
             <glossdef>
                 <para>The section where package should be put.