diff --git a/shims/fs.js b/shims/fs.js
index d3b259d..53320f9 100644
--- a/shims/fs.js
+++ b/shims/fs.js
@@ -62,7 +62,4 @@ const fs = new Proxy(fsInstance, {
   },
 });
 
-module.exports = {
-  __esModule: true,
-  default: fs,
-};
+module.exports = fs;
diff --git a/tests/spec/shims/fs.spec.js b/tests/spec/shims/fs.spec.js
index b4ee04b..17f234b 100644
--- a/tests/spec/shims/fs.spec.js
+++ b/tests/spec/shims/fs.spec.js
@@ -1,7 +1,7 @@
 'use strict';
 const expect = require('chai').expect;
 const utils = require('../../lib/test-utils');
-const fs = utils.shimIndexedDB(() => require('../../../shims/fs').default);
+const fs = utils.shimIndexedDB(() => require('../../../shims/fs'));
 
 describe('fs shim', () => {
   it('should be defined', () => {