Check with require does not output the correct cmd

[HMAZonderland]

I have defined variables into a json file that I include into my sass files. I use the sass-json-vars plugin to do this.

When I execute the the command grunt sass:test (I have created a task) it does read the options i've created correctly:

Options: require="sass-json-vars", check, update=false

However the command it outputs is:

Command: sass --check sampletheme/sass/style.scss

Which is not the complete command because I do require this sass-json-vars plugin.

When I try this command:

sass --check sampletheme/sass/style.scss --require=sass-json-vars

It won't execute.

I'm not sure this is expected behaviour of if this feature is not possible at all, but i'm just reporting this issue,