diff --git a/tests/test_docker_compose_runtime_mounts.py b/tests/test_docker_compose_runtime_mounts.py
index d479e9b..ae81d12 100644
--- a/tests/test_docker_compose_runtime_mounts.py
+++ b/tests/test_docker_compose_runtime_mounts.py
@@ -39,3 +39,18 @@ def test_core_runtime_services_keep_memory_limits_and_healthchecks():
         assert "healthcheck:" in block
 
     assert 'curl", "-f", "http://localhost:80/health"' in _service_block(compose, "momo-app")
+
+
+def test_optional_compose_services_stay_behind_profiles():
+    compose = DOCKER_COMPOSE.read_text(encoding="utf-8")
+    expected_profiles = {
+        "nginx": "- local-dev",
+        "nginx-monitor": "- deprecated",
+        "metabase": "- bi",
+        "grist": "- bi",
+    }
+
+    for service_name, profile_line in expected_profiles.items():
+        block = _service_block(compose, service_name)
+        assert "profiles:" in block
+        assert profile_line in block