diff --git a/README.md b/README.md
index 94ae199..2944bdb 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,7 @@ Or even better, consider using [jsdom-global](https://www.npmjs.com/package/jsdo
 
 ```js
 require('jsdom-global')(undefined, { /*... jsdom config parameters ...*/ });
+global.performance = window.performance; // Required for node.js v14 and older, until https://github.com/rstacruz/jsdom-global/issues/59 is resolved
 require('mock-mediawiki');
 ```
 
diff --git a/tests/jest.test.js b/tests/jest.test.js
index 2b32a73..40a987a 100644
--- a/tests/jest.test.js
+++ b/tests/jest.test.js
@@ -1,5 +1,5 @@
 
-describe('test', function () {
+describe('test with jest', function () {
 
 	test('mw.Title works with correct wgLegalTitleChars mocking', () => {
 		expect(new mw.Title('Template:Foo').getMainText()).toBe('Foo');
@@ -103,4 +103,4 @@ function sleep(ms) {
 			resolve();
 		}, ms);
 	}));
-}
\ No newline at end of file
+}
diff --git a/tests/jsdom-global.test.js b/tests/jsdom-global.test.js
index 7e8ba5f..89dc2ee 100644
--- a/tests/jsdom-global.test.js
+++ b/tests/jsdom-global.test.js
@@ -1,9 +1,10 @@
 const assert = require('assert');
 
 require('jsdom-global')(undefined, { url: 'https://test.wikipedia.org', runScripts: 'dangerously' });
+global.performance = window.performance; // See readme
 require('../index');
 
-describe('test with jsdom-global', function () {
+describe('test using jsdom-global and mocha', function () {
 
 	it('mw.Title works with correct wgLegalTitleChars mocking', () => {
 		assert.strictEqual(new mw.Title('Template:Foo').getMainText(), 'Foo');
diff --git a/tests/mocha.test.js b/tests/mocha.test.js
index d6ee201..499ff53 100644
--- a/tests/mocha.test.js
+++ b/tests/mocha.test.js
@@ -2,7 +2,7 @@ const assert = require('assert');
 
 require('../with-jsdom'); // jest's deps include jsdom, so we haven't explicitly put jsdom as a dev-dep!
 
-describe('test', function () {
+describe('test using bundled with-jsdom and mocha', function () {
 
 	it('mw.Title works with correct wgLegalTitleChars mocking', () => {
 		assert.strictEqual(new mw.Title('Template:Foo').getMainText(), 'Foo');
@@ -107,4 +107,4 @@ function sleep(ms) {
 			resolve();
 		}, ms);
 	}));
-}
\ No newline at end of file
+}