diff --git a/README.md b/README.md
index cb3004d..198683d 100644
--- a/README.md
+++ b/README.md
@@ -46,13 +46,13 @@ west flash
 ~/go/bin/mcumgr conn add ttyusb0 type="serial" connstring="dev=/dev/ttyUSB0,baud=115200,mtu=512"
 
 # hold button while power cycling to enter bootloading mode
-~/go/bin/mcumgr -c usbtty0 image list
+~/go/bin/mcumgr -c ttyusb0 image list
 
 # build the app
 west build -p -b mellifera_rev1 app
 
 ~/go/bin/mcumgr -c ttyusb0 image upload -e build/zephyr/zephyr.signed.bin
-~/go/bin/mcumgr -c usbtty0 image list
+~/go/bin/mcumgr -c ttyusb0 image list
 ```
 
 ### Testing