diff --git a/addons/web/static/src/legacy/utils.js b/addons/web/static/src/legacy/utils.js
index 4e16585ab3e..43c5e971751 100644
--- a/addons/web/static/src/legacy/utils.js
+++ b/addons/web/static/src/legacy/utils.js
@@ -106,7 +106,7 @@ export function makeLegacyNotificationService(legacyEnv) {
                 }
             }
 
-            legacyEnv.services.notification = { notify, close };
+            legacyEnv.services.notification = { notify, close, add: notification.add };
         },
     };
 }