diff --git a/manpages/shorewall.xml b/manpages/shorewall.xml
index 0f307003b..5560aa3f5 100644
--- a/manpages/shorewall.xml
+++ b/manpages/shorewall.xml
@@ -460,7 +460,8 @@
 
       <arg>-<replaceable>options</replaceable></arg>
 
-      <arg choice="plain"><option>version</option></arg>
+      <arg
+      choice="plain"><option>version</option><arg><option>-a</option></arg></arg>
     </cmdsynopsis>
   </refsynopsisdiv>
 
@@ -1199,7 +1200,9 @@
         <term><emphasis role="bold">version</emphasis></term>
 
         <listitem>
-          <para>Displays Shorewall's version.</para>
+          <para>Displays Shorewall's version. If the -a option is included,
+          the versions of Shorewall-shell and/or Shorewall-perl will also be
+          displayed. </para>
         </listitem>
       </varlistentry>
     </variablelist>