diff --git a/en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml b/en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
index 7ae4aad387..e2cd57ab35 100644
--- a/en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
@@ -374,6 +374,21 @@
 	described above.</para>
     </note>
 
+    <tip>
+      <para>By default, when you build a custom kernel,
+	<emphasis>all</emphasis> kernel modules also will be rebuilded.
+	If you want to update a kernel faster or to build only custom
+	modules, you should edit <filename>/etc/make.conf</filename>
+	before starting to build the kernel:</para>
+
+      <programlisting>MODULES_OVERRIDE = linux acpi sound/sound sound/driver/ds1 ntfs</programlisting>
+
+      <para>This variable sets up a list of modules to build instead
+	of all of them.  For other variables which you may find useful
+	in the process of building kernel, refer to &man.make.conf.5;
+	manual page.</para>
+    </tip>
+
     <note>
       <para>In &os;&nbsp;4.2 and older you must replace
         <literal>KERNCONF=</literal> with <literal>KERNEL=</literal>.