diff --git a/en_US.ISO8859-1/articles/filtering-bridges/article.xml b/en_US.ISO8859-1/articles/filtering-bridges/article.xml
index 8ed1f4a9f0..9f4e6e04b5 100644
--- a/en_US.ISO8859-1/articles/filtering-bridges/article.xml
+++ b/en_US.ISO8859-1/articles/filtering-bridges/article.xml
@@ -211,7 +211,7 @@ firewall_logging="YES"</programlisting>
     <para>At this point you should be able to insert the machine between two
       sets of hosts without compromising any communication abilities between
       them. If so, the next step is to add the
-      <literal>net.link.ether.bridge.[blah]=[blah]</literal>
+      <literal>net.link.ether.bridge.<replaceable>[blah]</replaceable>=<replaceable>[blah]</replaceable></literal>
       portions of these rows to the <filename>/etc/sysctl.conf</filename>
       file, in order to have them execute at startup.</para>
   </sect1>