diff --git a/connector/README.md b/connector/README.md
index 9200a8d..a7b8ad8 100644
--- a/connector/README.md
+++ b/connector/README.md
@@ -1,6 +1,6 @@
 # Use a container to implement a serial to net bridge
 
-This uses `ncat` from [nmap](https://nmap.org/ncat/) to bridge a serial port to a network port. The serial port is passed to the Podman command (eg. `/dev/ttyUSB0`) and the network port is `2560`.
+This uses `ncat` from [nmap](https://nmap.org/ncat/) to bridge a serial port to a network port. The serial port is passed to the Podman command (eg. `/dev/ttyACM0`) and the network port is `2560`.
 
 > [!IMPORTANT]
 > Other variants of `nc` or `ncat` may not work as expected.
@@ -9,7 +9,7 @@ This uses `ncat` from [nmap](https://nmap.org/ncat/) to bridge a serial port to
 
 ```bash
 $ podman buil -t dcc/bridge .
-$ podman run -d --device=/dev/ttyUSB0:/dev/arduino -p 2560:2560 --name dcc-bridge dcc/bridge
+$ podman run -d --group-add keep-groups --device=/dev/ttyACM0:/dev/arduino -p 2560:2560 --name dcc-bridge dcc/bridge
 ```
 
 It can be tested with `telnet`: