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What's the code your using to create the s3 object?

And is this using aws or aws-native, I think it's the provider itself that does the zipping not the engine so we need to look at the correct one.

Hi Fraser, a more complete example. When I download `outer.zip` from the S3 bucket and unzip its contents, `inner.zip` is a directory and not a zip archive

```import * as aws from '@pulumi/aws'
import * as pulumi from '@pulumi/pulumi'

new aws.s3.BucketObject({
  bucket: 'xyz',
  key: 'outer.zip',
  source: new pulumi.asset.AssetArchive({
    'my.txt': new pulumi.asset.StringAsset('test'),
    'inner.zip': new pulumi.asset.FileArchive('dist/folder'),
  })
})```

Looks like this is by design, inner archives get flattened out into their files in parent archives. I suspect a lot of things probably rely on that behaviour so we probably can't flip it around, but if you raise an issue at <http://github.com/pulumi/pulumi/issues|github.com/pulumi/pulumi/issues> we can discuss what could be done to support this.