diff --git a/addons/mail/static/src/models/notification_group_view.js b/addons/mail/static/src/models/notification_group_view.js
index f0fd24d61ec..707b371c435 100644
--- a/addons/mail/static/src/models/notification_group_view.js
+++ b/addons/mail/static/src/models/notification_group_view.js
@@ -19,9 +19,10 @@ registerModel({
                 // handled in `_onClickMarkAsRead`
                 return;
             }
+            const messaging = this.messaging;
             this.notificationGroup.openDocuments();
-            if (!this.messaging.device.isSmall) {
-                this.messaging.messagingMenu.close();
+            if (!messaging.device.isSmall) {
+                messaging.messagingMenu.close();
             }
         },
         /**