diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index a44a086ee1..0667c49e92 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -26,7 +26,7 @@
        <link linkend='var-HOMEPAGE'>H</link>
        <link linkend='var-IMAGE_FEATURES'>I</link>
 <!--               <link linkend='var-glossary-j'>J</link> -->
-       <link linkend='var-KBRANCH'>K</link>
+       <link linkend='var-KARCH'>K</link>
        <link linkend='var-LAYERDIR'>L</link>
        <link linkend='var-MACHINE'>M</link>
 <!--               <link linkend='var-glossary-n'>N</link> -->