Unable to use --config flag in v0.1.4

[eefahy]

Using v0.1.4

running:
terraform plan -input=false | tfnotify plan --config ../tfnotify.yml

returns:

Incorrect Usage: flag provided but not defined: -config

NAME:
   tfnotify plan - Parse stdin as a plan result

USAGE:
   tfnotify plan [command options] [arguments...]

OPTIONS:
   --message value, -m value  Specify the message to use for notification
   
flag provided but not defined: -config

[eefahy]

derp terraform plan -input=false | tfnotify --config ../tfnotify.yml plan works