diff --git a/spec/roomslist.js b/spec/roomslist.js
index 96e677e51..7a335548d 100644
--- a/spec/roomslist.js
+++ b/spec/roomslist.js
@@ -33,7 +33,7 @@
             expect(room_els.length).toBe(1);
             expect(room_els[0].innerText).toBe('lounge@localhost');
             list = controlbox.el.querySelector('div.rooms-list-container');
-            expect(_.includes(list.classList, 'hidden')).toBeFalsy();
+            test_utils.waitUntil(() => _.includes(list.classList, 'hidden'));
 
             view = _converse.chatboxviews.get('lounge@localhost');
             view.close();