Suite not found when bundling with Rollup

[jonkoops]

I have a simple application hat uses Rollup to bundle some performance tests using benchmark and it cannot find the Suite class.

import benchmark from 'benchmark'

// TypeError: benchmark.Suite is not a constructor
const suite = new benchmark.Suite()

I've created an isolated code example that will produce this error here: https://github.com/jonkoops/rollup-bench

[horizon0514]

import * as Benchmark from 'benchmark';