diff --git a/documentation/kernel-dev/kernel-dev-advanced.xml b/documentation/kernel-dev/kernel-dev-advanced.xml
index c0d8ca66eb..caf19c65c1 100644
--- a/documentation/kernel-dev/kernel-dev-advanced.xml
+++ b/documentation/kernel-dev/kernel-dev-advanced.xml
@@ -63,7 +63,7 @@
     <para>
         Every linux-yocto style recipe must also indicate the Linux kernel
         source repository branch used to build the Linux kernel.
-        The <ulink url='&YOCTO_DOCS_REF_URL;#var-KBRANCH'>KBRANCH</ulink>
+        The <ulink url='&YOCTO_DOCS_REF_URL;#var-KBRANCH'><filename>KBRANCH</filename></ulink>
         variable must be set to indicate the branch.
         <note>
             You can use the <filename>KBRANCH</filename> value to define an