diff --git a/bin/dig/dig.docbook b/bin/dig/dig.docbook

index 1079421..f11abd1 100644

--- a/bin/dig/dig.docbook

+++ b/bin/dig/dig.docbook

@@ -1177,6 +1177,39 @@ dig +qr www.isc.org any -x 127.0.0.1 isc.org ns +noqr

     </para>

   </refsection>

+  <refsection><info><title>RETURN CODES</title></info>

+    <para>

+      <command>Dig</command> return codes are:

+      <variablelist>

+        <varlistentry>

+          <listitem>

+            <para>0: Everything went well, including things like NXDOMAIN</para>

+          </listitem>

+        </varlistentry>

+        <varlistentry>

+          <listitem>

+            <para>1: Usage error</para>

+          </listitem>

+        </varlistentry>

+        <varlistentry>

+          <listitem>

+            <para>8: Couldn't open batch file</para>

+          </listitem>

+        </varlistentry>

+        <varlistentry>

+          <listitem>

+            <para>9: No reply from server</para>

+          </listitem>

+        </varlistentry>

+        <varlistentry>

+          <listitem>

+            <para>10: Internal error</para>

+          </listitem>

+        </varlistentry>

+      </variablelist>

+    </para>

+  </refsection>

+

   <refsection><info><title>FILES</title></info>

     <para><filename>/etc/resolv.conf</filename>