src/Commands/HelperMakeCommand.php
protected function buildClass($name)
    {
        $stub = $this->files->get($this->getStub());

        return str_replace('DummyHelper', $this->getNameInput(), $stub);
    }
protected function buildClass($name)
    {
        $stub = $this->files->get($this->getStub());

        return str_replace('DummyHelper', $this->getNameInput(), $stub);
    }
Replace DummyHelper in stub

@param string $name
@return mixed
@throws \Illuminate\Contracts\Filesystem\FileNotFoundException