diff --git a/chapter06/kernfs.xml b/chapter06/kernfs.xml
index 5437e3812..bb06cfec8 100644
--- a/chapter06/kernfs.xml
+++ b/chapter06/kernfs.xml
@@ -30,7 +30,7 @@
     <para>When the kernel boots the system, it requires the presence of a few
     device nodes, in particular the <filename
     class="devicefile">console</filename> and <filename
-    class="devicefile">null</filename> devices. The device nodes will be created
+    class="devicefile">null</filename> devices. The device nodes must be created
     on the hard disk so that they are available before <command>udevd</command>
     has been started, and additionally when Linux is started with
     <parameter>init=/bin/bash</parameter>. Create the devices by running the