Fix typo : dialup vs dialout group

diff --git a/docs/Serial.md b/docs/Serial.md
index 67ae5daf9b5602f2c6ba1fe94fcf10af6ac112a5..bd85aafda9ba595cf295b3156a24b21ff957bd9d 100644 (file)
--- a/docs/Serial.md
+++ b/docs/Serial.md
@@ -79,7 +79,7 @@ be 115200
 
 2) Plug the USB part of the serial cable into an available USB port.
 
-3) run `screen /dev/ttyUSB0 115200` or (if you are NOT part of the `dialup` group) `sudo screen /dev/ttyUSB0 115200`
+3) run `screen /dev/ttyUSB0 115200` or (if you are NOT part of the `dialout` group) `sudo screen /dev/ttyUSB0 115200`
 
 4) Power on the device you are connecting to.