diff --git a/documentation/kernel-dev/kernel-dev-common.xml b/documentation/kernel-dev/kernel-dev-common.xml
index ab7f80fbe4..d3119a88b2 100644
--- a/documentation/kernel-dev/kernel-dev-common.xml
+++ b/documentation/kernel-dev/kernel-dev-common.xml
@@ -270,11 +270,12 @@
                 edit the recipe that builds your kernel so that it has the
                 following command form:
                 <literallayout class='monospaced'>
-     KBUILD_DEFCONFIG_<ulink url='&YOCTO_DOCS_REF_URL;#var-KMACHINE'>KMACHINE</ulink> ?= <replaceable>defconfig_file</replaceable>
+     KBUILD_DEFCONFIG_KMACHINE ?= <replaceable>defconfig_file</replaceable>
                 </literallayout>
                 You need to append the variable with
-                <filename>KMACHINE</filename> and then supply the path to
-                your "in-tree" <filename>defconfig</filename> file.
+                <ulink url='&YOCTO_DOCS_REF_URL;#var-KMACHINE'><filename>KMACHINE</filename></ulink>
+                and then supply the path to your "in-tree"
+                <filename>defconfig</filename> file.
             </para>
 
             <para>