diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 48fcc199ac..aea1a4f4a5 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -102,7 +102,8 @@
     </para>
 
     <para>
-        By default, the <filename>autotools</filename> uses out-of-tree builds
+        By default, the <filename>autotools</filename> class
+        uses out-of-tree builds
         (<link linkend='var-B'><filename>B</filename></link> <filename>!=</filename>
         <link linkend='var-S'><filename>S</filename></link>).
         If the software being built by a recipe does not support