diff --git a/chapter07/usage.xml b/chapter07/usage.xml
index 2d68f38fd..4a4cf6c36 100644
--- a/chapter07/usage.xml
+++ b/chapter07/usage.xml
@@ -378,7 +378,7 @@ EOF</userinput></screen>
       <term>LOGLEVEL</term>
       <listitem>
         <para>This variable specifies the log level for kernel messages sent
-        to the console as set by <command>dmesg</command>. Valid levels are
+        to the console as set by <command>dmesg -n</command>. Valid levels are
         from "1" (no messages) to "8". The default level is "7".</para>
       </listitem>
     </varlistentry>