diff --git a/en_US.ISO8859-1/books/handbook/security/chapter.sgml b/en_US.ISO8859-1/books/handbook/security/chapter.sgml
index 81f46e0cef..4ddfe3bf87 100644
--- a/en_US.ISO8859-1/books/handbook/security/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/security/chapter.sgml
@@ -1464,7 +1464,7 @@ permit port ttyd0</programlisting>
       </authorgroup>
     </sect1info>
 
-    <title>KerberosIV</title>
+    <title><application>KerberosIV</application></title>
 
     <para>Kerberos is a network add-on system/protocol that allows users to
       authenticate themselves through the services of a secure server.
@@ -1477,7 +1477,7 @@ permit port ttyd0</programlisting>
       relevant manual pages for a complete description.</para>
 
     <sect2>
-      <title>Installing KerberosIV</title>
+      <title>Installing <application>KerberosIV</application></title>
 
       <indexterm><primary>MIT</primary></indexterm>
       <indexterm>