zip error: Nothing to do!

[teocns]

I have a project dir like so:

└── lambda
    └── lambda_handler.py

WIth .yml file instructions like:

 steps:
      - name: zip
        uses: montudor/action-zip@v0.1.0
        with:
          args:   zip -qq -r bundle.zip lambda

I keep receiving the following error:

zip error: Nothing to do! (try: zip -qq -r bundle.zip . -i lambda/)

I have also tried with zip -qq -r bundle.zip . -i lambda/ but it would just result in an empty zip.