diff --git a/addons/mail/static/src/views/web/activity/activity_model.js b/addons/mail/static/src/views/web/activity/activity_model.js
index 74381b4628d..e9a3f2f8352 100644
--- a/addons/mail/static/src/views/web/activity/activity_model.js
+++ b/addons/mail/static/src/views/web/activity/activity_model.js
@@ -9,7 +9,7 @@ export class ActivityModel extends RelationalModel {
         this.originalDomain = params.domain ? [...params.domain] : [];
         // Ensure that only (active) records with at least one activity, "done" (archived) or not, are fetched.
         // We don't use active_test=false in the context because otherwise we would also get archived records.
-        params.domain = [...params.domain, ["activity_ids.active", "in", [true, false]]];
+        params.domain = [...(params.domain || []), ["activity_ids.active", "in", [true, false]]];
         if (params && "groupBy" in params) {
             params.groupBy = [];
         }