diff --git a/doc/flatpak-run.xml b/doc/flatpak-run.xml
index 16c735ac..da6fe451 100644
--- a/doc/flatpak-run.xml
+++ b/doc/flatpak-run.xml
@@ -549,6 +549,23 @@ key=v1;v2;
                 </para></listitem>
             </varlistentry>
 
+            <varlistentry>
+                <term><option>--parent-pid</option></term>
+
+                <listitem><para>
+                    Specifies the pid of the "parent" flatpak, used by --parent-expose-pids.
+                </para></listitem>
+            </varlistentry>
+
+            <varlistentry>
+                <term><option>--parent-expose-pids</option></term>
+
+                <listitem><para>
+                    Make the processes of the new sandbox visible in the sandbox of the parent flatpak, as defined
+                    by --parent-pid.
+                </para></listitem>
+            </varlistentry>
+
             <varlistentry>
                 <term><option>--file-forwarding</option></term>