diff --git a/chapter06/makedev-inst.xml b/chapter06/makedev-inst.xml
index 7b93816ad..d5b9c3b2d 100644
--- a/chapter06/makedev-inst.xml
+++ b/chapter06/makedev-inst.xml
@@ -14,10 +14,10 @@ chmod 754 MAKEDEV</userinput></screen></para>
 can run one of two commands:</para>
 
 <para>If you do not intend to use devpts, run:</para>
-<para><userinput>./MAKEDEV -v generic</userinput></para>
+<para><screen><userinput>./MAKEDEV -v generic</userinput></screen></para>
 
 <para>If you do intend to use devpts, then run:</para>
-<para><userinput>./MAKEDEV -v generic-nopty</userinput></para>
+<para><screen><userinput>./MAKEDEV -v generic-nopty</userinput></screen></para>
 
 <para>Note that if you aren't sure, it's best to use 
 the <userinput>./MAKEDEV -v generic</userinput> command as this will