diff --git a/man/getsubids.1.xml b/man/getsubids.1.xml
index 200ed35f..84dce6e6 100644
--- a/man/getsubids.1.xml
+++ b/man/getsubids.1.xml
@@ -89,6 +89,16 @@
           </para>
         </listitem>
       </varlistentry>
+      <varlistentry>
+        <term>
+          <option>-h</option>
+        </term>
+        <listitem>
+          <para>
+            Display help message and exit.
+          </para>
+        </listitem>
+      </varlistentry>
     </variablelist>
   </refsect1>