diff --git a/README.html b/README.html
index 2691520..a8fc5ef 100644
--- a/README.html
+++ b/README.html
@@ -370,12 +370,14 @@ client’s drop-down “Screen Mirroring” panel, check that your DNS-SD
 server (usually avahi-daemon) is running: do this in a terminal window
 with <code>systemctl status avahi-daemon</code>. If this shows the
 avahi-daemon is not running, control it with
-<code>sudo systemctl [start,stop,enable,disable] avahi-daemon</code> (or
-avahi-daemon.service). If UxPlay is seen, but the client fails to
-connect when it is selected, there may be a firewall on the server that
-prevents UxPlay from receiving client connection requests unless some
-network ports are opened: if a firewall is active, also open UDP port
-5353 (for mDNS queries) needed by Avahi. See <a
+<code>sudo systemctl [start,stop,enable,disable] avahi-daemon</code> (on
+non-systemd systems, such as *BSD, use
+<code>sudo service avahi-daemon [status, start, stop, restart, ...]</code>).
+If UxPlay is seen, but the client fails to connect when it is selected,
+there may be a firewall on the server that prevents UxPlay from
+receiving client connection requests unless some network ports are
+opened: if a firewall is active, also open UDP port 5353 (for mDNS
+queries) needed by Avahi. See <a
 href="#troubleshooting">Troubleshooting</a> below for help with this or
 other problems.</p>
 <ul>
diff --git a/README.md b/README.md
index a180d50..b6e99fd 100644
--- a/README.md
+++ b/README.md
@@ -314,9 +314,10 @@ iOS client's drop-down "Screen Mirroring" panel, check that your DNS-SD
 server (usually avahi-daemon) is running: do this in a terminal window
 with ```systemctl status avahi-daemon```.
 If this shows the avahi-daemon is not running, control it
-with ```sudo systemctl [start,stop,enable,disable] avahi-daemon``` (or
-avahi-daemon.service). If UxPlay is seen, but the client fails to connect
-when it is selected, there may be a firewall on the server that  prevents
+with ```sudo systemctl [start,stop,enable,disable] avahi-daemon``` (on non-systemd systems, such as  \*BSD,
+use ``sudo service avahi-daemon [status, start, stop, restart, ...]``). If UxPlay is
+seen, but the client fails to connect
+when it is selected, there may be a firewall on the server that prevents
 UxPlay from receiving client connection requests unless some network ports
 are opened: if a firewall is active, also open UDP port 5353 (for mDNS queries)
 needed by Avahi. See [Troubleshooting](#troubleshooting) below for
diff --git a/README.txt b/README.txt
index 8a87822..f2883ce 100644
--- a/README.txt
+++ b/README.txt
@@ -373,14 +373,15 @@ done. If the UxPlay server is not seen by the iOS client's drop-down
 avahi-daemon) is running: do this in a terminal window with
 `systemctl status avahi-daemon`. If this shows the avahi-daemon is not
 running, control it with
-`sudo systemctl [start,stop,enable,disable] avahi-daemon` (or
-avahi-daemon.service). If UxPlay is seen, but the client fails to
-connect when it is selected, there may be a firewall on the server that
-prevents UxPlay from receiving client connection requests unless some
-network ports are opened: if a firewall is active, also open UDP port
-5353 (for mDNS queries) needed by Avahi. See
-[Troubleshooting](#troubleshooting) below for help with this or other
-problems.
+`sudo systemctl [start,stop,enable,disable] avahi-daemon` (on
+non-systemd systems, such as \*BSD, use
+`sudo service avahi-daemon [status, start, stop, restart, ...]`). If
+UxPlay is seen, but the client fails to connect when it is selected,
+there may be a firewall on the server that prevents UxPlay from
+receiving client connection requests unless some network ports are
+opened: if a firewall is active, also open UDP port 5353 (for mDNS
+queries) needed by Avahi. See [Troubleshooting](#troubleshooting) below
+for help with this or other problems.
 
 -   By default, UxPlay is locked to its current client until that client
     drops the connection; the option `-nohold` modifies this behavior so