Machine ID does not detect token in file configuration

[russjones]

Attempted to run Machine ID with the following file configuration.

auth_server: "auth.example.com:3025"
certificate_ttl: "5m"
renewal_interval: "1m"
onboarding:
  join_method: "token"
  token: "00000000000000000000000000000000"
  ca_pins:
  - "sha256:1111111111111111111111111111111111111111111111111111111111111111"
storage:
  directory: /home/ubuntu/run/bin-m/primary
destinations:
  - directory: /home/ubuntu/run/bin-m/secondary

Ran into the following error.

$ tbot start -d -c /home/ubuntu/run/tbot.yaml
WARN [TBOT]      CLI parameters are overriding certificate TTL configured in /home/ubuntu/run/tbot.yaml config/config.go:230
WARN [TBOT]      CLI parameters are overriding onboarding config from /home/ubuntu/run/tbot.yaml config/config.go:284
INFO [TBOT]      Created directory "/home/ubuntu/run/bin-m/primary" config/destination_directory.go:125
DEBU [TBOT]      Loaded 1 SSH CA certs and 1 TLS CA certs identity/identity.go:438

ERROR REPORT:
Original Error: *trace.BadParameterError unable to start: no token present
Stack Trace:
	/go/src/github.com/gravitational/teleport/tool/tbot/main.go:384 main.getIdentityFromToken
	/go/src/github.com/gravitational/teleport/tool/tbot/main.go:227 main.onStart
	/go/src/github.com/gravitational/teleport/tool/tbot/main.go:127 main.Run
	/go/src/github.com/gravitational/teleport/tool/tbot/main.go:61 main.main
	/opt/go/src/runtime/proc.go:255 runtime.main
	/opt/go/src/runtime/asm_amd64.s:1581 runtime.goexit
User Message: unable to start: no token present