diff --git a/index.js b/index.js
index 72f5717..3e43373 100644
--- a/index.js
+++ b/index.js
@@ -88,7 +88,7 @@ const open = async (target, options) => {
 		}));
 	}
 
-	let {name: app, appArguments = []} = options.app || {};
+	let {name: app, arguments: appArguments = []} = options.app || {};
 
 	if (Array.isArray(app)) {
 		return pTryEach(app, appName => open(target, {
diff --git a/test.js b/test.js
index 271043f..447e5df 100644
--- a/test.js
+++ b/test.js
@@ -27,7 +27,10 @@ test('open URL in specified app', async t => {
 });
 
 test('open URL in specified app with arguments', async t => {
-	await t.notThrowsAsync(open('https://sindresorhus.com', {app: {name: open.apps.chrome, arguments: ['--incognito']}}));
+	await t.notThrowsAsync(async () => {
+		const proc = await open('https://sindresorhus.com', {app: {name: open.apps.chrome, arguments: ['--incognito']}});
+		t.deepEqual(proc.spawnargs, ['open', '-a', open.apps.chrome, 'https://sindresorhus.com', '--args', '--incognito']);
+	});
 });
 
 test('return the child process when called', async t => {