diff --git a/en_US.ISO8859-1/books/handbook/dtrace/chapter.sgml b/en_US.ISO8859-1/books/handbook/dtrace/chapter.sgml
index 3afa1a87e1..e6acbd007e 100644
--- a/en_US.ISO8859-1/books/handbook/dtrace/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/dtrace/chapter.sgml
@@ -174,7 +174,7 @@ options         DDB_CTF</programlisting>
     <para>All sources must be rebuilt and installed with <acronym>CTF</acronym> options.
       To accomplish this task, rebuild the &os; sources using:</para>
 
-    <!-- XXXTR: WITH_CFT has been reported to leave a user with a
+    <!-- XXXTR: WITH_CTF has been reported to leave a user with a
          broken system when used with buildworld.  Until this is
          fixed, comment out those parts.  When uncommenting, kill
          the extra screen.
@@ -182,8 +182,8 @@ options         DDB_CTF</programlisting>
 
     <screen>&prompt.root; <userinput>cd /usr/src</userinput>
 <!-- &prompt.root; <userinput>make WITH_CTF=1 buildworld</userinput> -->
-&prompt.root; <userinput>make WITH_CFT=1 kernel</userinput></screen>
-<!-- &prompt.root; <userinput>make WITH_CFT=1 installworld</userinput>
+&prompt.root; <userinput>make WITH_CTF=1 kernel</userinput></screen>
+<!-- &prompt.root; <userinput>make WITH_CTF=1 installworld</userinput>
 &prompt.root; <userinput>mergemaster -Ui</userinput></screen> -->
 
     <para>The system will need to be restarted.</para>