diff --git a/test/socket.io.js b/test/socket.io.js
index a4db2b7aaa..83e5635cd3 100644
--- a/test/socket.io.js
+++ b/test/socket.io.js
@@ -92,13 +92,13 @@ describe('socket.io', () => {
 	});
 
 	it('should get installed themes', (done) => {
-		const themes = ['nodebb-theme-lavender', 'nodebb-theme-persona', 'nodebb-theme-vanilla'];
+		const themes = ['nodebb-theme-persona'];
 		io.emit('admin.themes.getInstalled', (err, data) => {
 			assert.ifError(err);
 			assert(data);
 			const installed = data.map(theme => theme.id);
 			themes.forEach((theme) => {
-				assert.notEqual(installed.indexOf(theme), -1);
+				assert(installed.includes(theme));
 			});
 			done();
 		});