diff --git a/man/systemd-dissect.xml b/man/systemd-dissect.xml
index 078ee50857..3c758ba62e 100644
--- a/man/systemd-dissect.xml
+++ b/man/systemd-dissect.xml
@@ -53,6 +53,12 @@
     <cmdsynopsis>
       <command>systemd-dissect <arg choice="opt" rep="repeat">OPTIONS</arg> <option>--copy-to</option> <arg choice="plain"><replaceable>IMAGE</replaceable></arg> <arg choice="opt"><replaceable>SOURCE</replaceable></arg> <arg choice="plain"><replaceable>PATH</replaceable></arg></command>
     </cmdsynopsis>
+    <cmdsynopsis>
+      <command>systemd-dissect <arg choice="opt" rep="repeat">OPTIONS</arg> <option>--discover</option></command>
+    </cmdsynopsis>
+    <cmdsynopsis>
+      <command>systemd-dissect <arg choice="opt" rep="repeat">OPTIONS</arg> <option>--validate</option> <arg choice="plain"><replaceable>IMAGE</replaceable></arg></command>
+    </cmdsynopsis>
   </refsynopsisdiv>
 
   <refsect1>
@@ -222,7 +228,6 @@
 
       <varlistentry>
         <term><option>--mtree</option></term>
-        <term><option>-l</option></term>
 
         <listitem><para>Generates a BSD
         <citerefentry project='die-net'><refentrytitle>mtree</refentrytitle><manvolnum>8</manvolnum></citerefentry>