diff --git a/pkgs/clan-cli/tests/test_flake_api.py b/pkgs/clan-cli/tests/test_flake_api.py
index 767af4f7b..2fa65d281 100644
--- a/pkgs/clan-cli/tests/test_flake_api.py
+++ b/pkgs/clan-cli/tests/test_flake_api.py
@@ -5,7 +5,7 @@ from api import TestClient
 
 
 @pytest.mark.impure
-def test_inspect(api: TestClient, test_flake_with_core: Path) -> None:
+def test_inspect_ok(api: TestClient, test_flake_with_core: Path) -> None:
     params = {"url": str(test_flake_with_core)}
     response = api.get(
         "/api/flake/attrs",
@@ -15,3 +15,16 @@ def test_inspect(api: TestClient, test_flake_with_core: Path) -> None:
     data = response.json()
     print("Data: ", data)
     assert data.get("flake_attrs") == ["vm1"]
+
+
+@pytest.mark.impure
+def test_inspect_err(api: TestClient) -> None:
+    params = {"url": "flake-parts"}
+    response = api.get(
+        "/api/flake/attrs",
+        params=params,
+    )
+    assert response.status_code != 200, "Succeed to inspect vm but expected to fail"
+    data = response.json()
+    print("Data: ", data)
+    assert data.get("detail")