diff --git a/en_US.ISO8859-1/books/handbook/config/chapter.sgml b/en_US.ISO8859-1/books/handbook/config/chapter.sgml
index 0dce43ca5f..dc5e9c43fa 100644
--- a/en_US.ISO8859-1/books/handbook/config/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/config/chapter.sgml
@@ -2733,7 +2733,7 @@ kern.maxvnodes: 100000</screen>
 	<filename class="directory">src/sys/contrib/dev/acpica</filename>.
 	The glue code that allows <acronym>ACPI-CA</acronym> to work on
 	&os; is in
-	<filename>src/sys/dev/acpica/Osd</filename>.  Finally, drivers
+	<filename class="directory">src/sys/dev/acpica/Osd</filename>.  Finally, drivers
 	that implement various <acronym>ACPI</acronym> devices are found
 	in
 	<filename class="directory">src/sys/dev/acpica</filename>.</para>