diff --git a/terraform/application/config/test.tfvars.json b/terraform/application/config/test.tfvars.json
index acd79a19af..2632c40657 100644
--- a/terraform/application/config/test.tfvars.json
+++ b/terraform/application/config/test.tfvars.json
@@ -8,5 +8,6 @@
   "startup_command": ["/bin/sh", "-c", "bin/rails server -b 0.0.0.0"],
   "worker_command": ["/bin/sh", "-c", "bin/bundle exec bin/delayed_job run -n 1"],
   "enable_monitoring": true,
-  "statuscake_contact_groups": [195955, 282453]
+  "statuscake_contact_groups": [195955, 282453],
+  "external_url": "https://claim-additional-payments-for-teaching-test-web.test.teacherservices.cloud/additional-payments/claim"
 }