1 files changed, 5 insertions, 5 deletions
diff --git a/addons/mail/static/tests/thread_window/hidden_thread_window_tests.js b/addons/mail/static/tests/thread_window/hidden_thread_window_tests.js
index 078230e276a..36da266128c 100644
--- a/addons/mail/static/tests/thread_window/hidden_thread_window_tests.js
+++ b/addons/mail/static/tests/thread_window/hidden_thread_window_tests.js
@@ -31,7 +31,7 @@ QUnit.module('Hidden', {
         this.services = mailTestUtils.getMailServices();
         this.ORIGINAL_THREAD_WINDOW_APPENDTO = this.services.mail_service.prototype.THREAD_WINDOW_APPENDTO;
 
-        this.createParent = function (params) {
+        this.createParent = async function (params) {
             var widget = new Widget();
 
             // in non-debug mode, append thread windows in qunit-fixture
@@ -43,7 +43,7 @@ QUnit.module('Hidden', {
                 self.services.mail_service.prototype.THREAD_WINDOW_APPENDTO = '#qunit-fixture';
             }
 
-            testUtils.mock.addMockEnvironment(widget, params);
+            await testUtils.mock.addMockEnvironment(widget, params);
             return widget;
         };
     },
@@ -86,7 +86,7 @@ QUnit.test('hidden thread windows dropdown when not enough horizontal space (ver
         },
     };
 
-    var parent = this.createParent({
+    var parent = await this.createParent({
         data: this.data,
         services: this.services,
     });
@@ -172,7 +172,7 @@ QUnit.test('hidden thread windows dropdown when not enough horizontal space (ver
         },
     };
 
-    var parent = this.createParent({
+    var parent = await this.createParent({
         data: this.data,
         services: this.services,
     });
@@ -266,7 +266,7 @@ QUnit.test('receive message from hidden thread window', async function (assert)
         },
     };
 
-    var parent = this.createParent({
+    var parent = await this.createParent({
         data: this.data,
         services: this.services,
     });