diff --git a/en_US.ISO8859-1/books/faq/book.xml b/en_US.ISO8859-1/books/faq/book.xml
index 3e29c61bae..9cc4c71cef 100644
--- a/en_US.ISO8859-1/books/faq/book.xml
+++ b/en_US.ISO8859-1/books/faq/book.xml
@@ -3547,7 +3547,7 @@ kern.sched.name: ULE</screen>
 	    by adding this line to
 	    <filename>/etc/sysctl.conf</filename>:</para>
 
-	  <programlisting>vfs.zfs.trim_disable=1</programlisting>
+	  <programlisting>vfs.zfs.trim.enabled=0</programlisting>
 
 	  <note>
 	    <para>ZFS TRIM may not work with all configurations, such