diff --git a/docs/ISO-3661.xml b/docs/ISO-3661.xml
index 5583318ca..e7729bbf8 100644
--- a/docs/ISO-3661.xml
+++ b/docs/ISO-3661.xml
@@ -47,7 +47,7 @@
     <para>Example - Drop email from the Anonymous Proxy and Satellite Provider
     networks.</para>
 
-    <para><filename>/etc/shorewall/tcrules</filename>:</para>
+    <para><filename>/etc/shorewall/rules</filename>:</para>
 
     <programlisting>    #ACTION   	   SOURCE	 	DEST	PROTO	DEST
     #		   					PORT(S)