diff --git a/addons/mail/static/tests/helpers/webclient_setup.js b/addons/mail/static/tests/helpers/webclient_setup.js
index 19db194b611..129ebc1112a 100644
--- a/addons/mail/static/tests/helpers/webclient_setup.js
+++ b/addons/mail/static/tests/helpers/webclient_setup.js
@@ -156,7 +156,7 @@ export const setupManager = {
  * @returns {LegacyRegistry} The registry containing all the legacy services that will be passed
  * to the webClient as a legacy parameter.
  */
-async function setupMessagingServiceRegistries({
+export async function setupMessagingServiceRegistries({
     loadingBaseDelayDuration = 0,
     messagingBus,
     services,