diff --git a/chapter07/network.xml b/chapter07/network.xml
index 33cf94cc8..7c028e247 100644
--- a/chapter07/network.xml
+++ b/chapter07/network.xml
@@ -5,6 +5,12 @@
 <para>This section only applies if you're going to configure a network
 card.</para>
 
+<para>If you don't have any network cards, you are most likely not going to
+create any configuration files relating to network cards. If that is the
+case, you must remove the <filename>network</filename> symlinks from all the
+runlevel directories
+(<filename class="directory">/etc/rc.d/rc*.d</filename>)</para>
+
 <sect2>
 <title>Configuring default gateway</title>