diff --git a/.github/workflows/lambda_smoke_tests.yml b/.github/workflows/lambda_smoke_tests.yml
index 5ff5420a..b562f91e 100644
--- a/.github/workflows/lambda_smoke_tests.yml
+++ b/.github/workflows/lambda_smoke_tests.yml
@@ -36,6 +36,13 @@ jobs:
       build_context: .
       service_name: postcode-splitter
 
+  postcode_splitter_ddd_smoke_test:
+    uses: ./.github/workflows/_smoke_test_lambda.yml
+    with:
+      dockerfile_path: applications/postcode_splitter/Dockerfile
+      build_context: .
+      service_name: postcode-splitter-ddd
+
   # ============================================================
   # Bulk Address2UPRN Combiner
   # ============================================================