diff --git a/docs/configuration_file_basics.xml b/docs/configuration_file_basics.xml
index d5aae3e82..8fd538fcc 100644
--- a/docs/configuration_file_basics.xml
+++ b/docs/configuration_file_basics.xml
@@ -86,6 +86,12 @@
           firewall high-level policy.</para>
         </listitem>
 
+        <listitem>
+          <para><filename>/etc/shorewall/initdone</filename> - An optional
+          Perl script that will be invoked by the Shorewall rules compiler
+          when the compiler has finished it's initialization.</para>
+        </listitem>
+
         <listitem>
           <para><filename>/etc/shorewall/interfaces</filename> - describes the
           interfaces on the firewall system.</para>