diff --git a/charts/eric-oss-hello-world-python-app/templates/deployment/deployment.yaml b/charts/eric-oss-hello-world-python-app/templates/deployment/deployment.yaml
index 6dc21cd..11cf591 100644
--- a/charts/eric-oss-hello-world-python-app/templates/deployment/deployment.yaml
+++ b/charts/eric-oss-hello-world-python-app/templates/deployment/deployment.yaml
@@ -150,7 +150,7 @@ spec:
               valueFrom:
                 fieldRef:
                   fieldPath: metadata.uid
-            - name: NAMESPACE
+            - name: APP_NAMESPACE
               valueFrom:
                 fieldRef:
                   fieldPath: metadata.namespace
diff --git a/eric-oss-hello-world-python-app/config.py b/eric-oss-hello-world-python-app/config.py
index 28266c4..3f3dd36 100644
--- a/eric-oss-hello-world-python-app/config.py
+++ b/eric-oss-hello-world-python-app/config.py
@@ -17,6 +17,7 @@ def get_config():
     app_cert_file_path = get_os_env_string("APP_CERT_FILE_PATH", "")
     client_creds_file_path = get_os_env_string("CLIENT_CREDS_FILE_PATH", "")
     client_id_file_name = get_os_env_string("CLIENT_ID_FILE_NAME", "")
+    app_namespace = get_os_env_string("APP_NAMESPACE", "")
 
     config = {
         "iam_client_id": iam_client_id,
@@ -32,6 +33,7 @@ def get_config():
         "client_creds_file_path": client_creds_file_path,
         "client_id_file_name": client_id_file_name,
         "chosen_unique_name": "eric-oss-hello-world-python-app",
+        "app_namespace": app_namespace,
     }
     return config
 
diff --git a/eric-oss-hello-world-python-app/mtls_logging.py b/eric-oss-hello-world-python-app/mtls_logging.py
index 36cc3a6..cdd7755 100644
--- a/eric-oss-hello-world-python-app/mtls_logging.py
+++ b/eric-oss-hello-world-python-app/mtls_logging.py
@@ -76,6 +76,7 @@ def log(self, message, severity):
             "message": message,
             "service_id": "rapp-" + self.config.get("chosen_unique_name"),
             "severity": severity.name.lower(),
+            "metadata": {"namespace": self.config.get("app_namespace")},
         }
 
         # print to console
diff --git a/eric-oss-hello-world-python-app/tests/conftest.py b/eric-oss-hello-world-python-app/tests/conftest.py
index 28eb8fb..6204eed 100644
--- a/eric-oss-hello-world-python-app/tests/conftest.py
+++ b/eric-oss-hello-world-python-app/tests/conftest.py
@@ -107,6 +107,12 @@ def no_log_certs():
     populate_environment_variables()
 
 
+@pytest.fixture(name="with_log_ctrl_file")
+def with_log_ctrl_file():
+    log_ctrl_config = get_config()
+    log_ctrl_config["log_ctrl_file"] = "/dummy/path/logcontrol.json"
+    return log_ctrl_config
+
 
 def populate_environment_variables():
     os.environ["IAM_CLIENT_ID"] = "IAM_CLIENT_ID"
@@ -120,3 +126,4 @@ def populate_environment_variables():
     os.environ["APP_CERT_FILE_PATH"] = "APP_CERT_FILE_PATH"
     os.environ["CLIENT_CREDS_FILE_PATH"] = os.path.relpath(os.path.dirname(__file__), "/")
     os.environ["CLIENT_ID_FILE_NAME"] = "client_id_example"
+    os.environ["APP_NAMESPACE"] = "test-namespace"
\ No newline at end of file
diff --git a/eric-oss-hello-world-python-app/tests/test_mtls_logging.py b/eric-oss-hello-world-python-app/tests/test_mtls_logging.py
index 4b9b623..fcb5e2d 100644
--- a/eric-oss-hello-world-python-app/tests/test_mtls_logging.py
+++ b/eric-oss-hello-world-python-app/tests/test_mtls_logging.py
@@ -6,6 +6,7 @@
 from mtls_logging import MtlsLogging, Severity
 
 
+
 def test_log_stdout_and_mtls(caplog):
     """Ensure any log is sent both to STDOUT and through HTTPS"""
     message = "Message which should appear in both STDOUT and sent as a POST request"
@@ -80,7 +81,7 @@ def test_log_handles_missing_schema(caplog):
     assert "Request failed for mTLS logging: Missing schema" in caplog.text
 
 
-def test_init_sets_log_level_from_log_ctrl_file():
+def test_init_sets_log_level_from_log_ctrl_file(with_log_ctrl_file):
     # Sample log control file contents with container mapping
     log_ctrl_data = [
         {"container": "test-container", "severity": "critical"},
@@ -88,22 +89,23 @@ def test_init_sets_log_level_from_log_ctrl_file():
     ]
     log_ctrl_json = json.dumps(log_ctrl_data)
 
-    # Mocked config dict including the log_ctrl_file path
-    mock_config = {
-        "log_ctrl_file": "/dummy/path/logcontrol.json",
-        "ca_cert_file_name": "ca.pem",
-        "ca_cert_file_path": "certs",
-        "app_cert": "appcert.pem",
-        "app_key": "appkey.pem",
-        "app_cert_file_path": "certs",
-        "log_endpoint": "log.endpoint",
-        "chosen_unique_name": "eric-oss-hello-world-python-app"
-    }
-
     # Patch config and environment variable
-    with mock.patch("mtls_logging.get_config", return_value=mock_config), \
+    with mock.patch("mtls_logging.get_config", return_value=with_log_ctrl_file), \
          mock.patch("mtls_logging.get_os_env_string", return_value="test-container"), \
          mock.patch("builtins.open", mock.mock_open(read_data=log_ctrl_json)):
 
         logger = MtlsLogging(level=None)
         assert logger.logger.level == Severity.CRITICAL
+
+
+def test_namespace_is_set_in_mtls_log(config):
+    """Ensure the namespace is set in the mTLS log"""
+    message = "Message that should be included in a request payload that includes the namespace"
+
+    with mock.patch("mtls_logging.get_config", return_value=config):
+        mock_post = with_mocked_post(send_log, message, Severity.INFO, Severity.INFO)
+        mock_post.assert_called()
+
+        request_body_object = mock_post.call_args.kwargs.get('json')
+
+        assert request_body_object['metadata']['namespace'] == 'test-namespace'