Quickstart template does not work for multi module project

Hello,

I am having trouble using this plugin with a multi module gradle project.

I have reproduced the problem with a sample project that has only two files

• settings.gradle
• tools
  • build.gradle

// tools/build.gradle
plugins {
    id 'groovy-gradle-plugin'
    id 'org.ysb33r.terraform'                            version '1.0.1'  
}
repositories {
    gradlePluginPortal()
}

dependencies {
}

// settings.gradle

rootProject.name = 'sandbox'
include(
    'tools',
)

Running gradle check gives the following error

* What went wrong:
An exception occurred applying plugin request [id: 'org.ysb33r.terraform', version: '1.0.1']
> Failed to apply plugin class 'org.ysb33r.gradle.terraform.plugins.TerraformBasePlugin'.
   > Could not create an instance of type org.ysb33r.gradle.terraform.internal.DefaultTerraformSourceSets.
      > Cannot locate a TerraformRC Extension in this project or the root project

Is this type of setup supported? If so, what is the appropriate configuration to resolve this error?