diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index b5f7c24a57..5f7e17d91c 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -1703,15 +1703,14 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
 
         <glossentry id='var-LINUX_VERSION_EXTENSION'><glossterm>LINUX_VERSION_EXTENSION</glossterm>
             <glossdef>
-                <para>A string extension compiled into the name of the
-                    Linux kernel built with the OpenEmbedded build system.
+                <para>A string extension compiled into the version
+                    string of the Linux kernel built with the OpenEmbedded
+                    build system.
                     You define this variable in the kernel recipe.
-                    For example, the <filename>linux-yocto-custom.bb</filename>
-                    kernel recipe found in
-                    <filename>meta-skeleton/recipes-kernel/linux</filename>
-                    defines the variable as follows:
+                    For example, the linux-yocto kernel recipes all define
+                    the variable as follows:
                     <literallayout class='monospaced'>
-     LINUX_VERSION_EXTENSION ?= "-custom"
+     LINUX_VERSION_EXTENSION ?= "-yocto-${LINUX_KERNEL_TYPE}"
                     </literallayout>
                     Defining this variable essentially sets the
                     Linux kernel configuration item