diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 1325d16590..492b30283c 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -127,9 +127,8 @@
     <para>
         By default, the <filename>autotools*</filename> classes
         use out-of-tree builds (i.e.
-        <filename>autotools.bbclass</filename>).
-        (<link linkend='var-B'><filename>B</filename></link> <filename>!=</filename>
-        <link linkend='var-S'><filename>S</filename></link>).
+        <filename>autotools.bbclass</filename> building with
+        <filename>B != S</filename>).
     </para>
 
     <para>