diff --git a/addons/mail/static/tests/chatter_tests.js b/addons/mail/static/tests/chatter_tests.js
index 582448f1bc7..ea6b7adbd8b 100644
--- a/addons/mail/static/tests/chatter_tests.js
+++ b/addons/mail/static/tests/chatter_tests.js
@@ -1036,6 +1036,8 @@ QUnit.test('chatter: receive notif when document is open', async function (asser
     assert.strictEqual(thread.getUnreadCounter(), 1,
         "document thread should now have one unread message");
 
+    // do not destroy form too early. wait rendering to avoid race condition in service call.
+    await testUtils.nextTick();
     form.destroy();
 });