diff --git a/man/halt.xml b/man/halt.xml
index 3ba151f927..0abcdb475c 100644
--- a/man/halt.xml
+++ b/man/halt.xml
@@ -114,8 +114,13 @@
         <term><option>-f</option></term>
         <term><option>--force</option></term>
 
-        <listitem><para>Force immediate halt, power-off, reboot. Do
-        not contact the init system.</para></listitem>
+        <listitem><para>Force immediate halt, power-off, or reboot. When
+        specified once, this results in an immediate but clean shutdown
+        by the system manager. When specified twice, this results in an
+        immediate shutdown without contacting the system manager. See the
+        description of <option>--force</option> in
+        <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+        for more details.</para></listitem>
       </varlistentry>
 
       <varlistentry>