diff --git a/.review_apps/ecs_task_definition.tf b/.review_apps/ecs_task_definition.tf
index 230949554..e376e9f84 100644
--- a/.review_apps/ecs_task_definition.tf
+++ b/.review_apps/ecs_task_definition.tf
@@ -25,6 +25,7 @@ locals {
     { name = "SETTINGS__AUTH_PROVIDER", value = "developer" },
     { name = "SETTINGS__FORMS_ENV", value = "review" },
     { name = "SETTINGS__FORMS_RUNNER__URL", value = "https://forms.service.gov.uk" },
+    { name = "SETTINGS__FEATURES__WELSH", value = "true" },
   ]
 }