diff --git a/pkgs/clan-cli/tests/test_api_dataclass_compat.py b/pkgs/clan-cli/tests/test_api_dataclass_compat.py
index 8f63b9722..474c7e9b4 100644
--- a/pkgs/clan-cli/tests/test_api_dataclass_compat.py
+++ b/pkgs/clan-cli/tests/test_api_dataclass_compat.py
@@ -121,6 +121,7 @@ def test_all_dataclasses() -> None:
         "api/__init__.py",
         "cmd.py",  # We don't want the UI to have access to the cmd module anyway
         "async_run.py",  # We don't want the UI to have access to the async_run module anyway
+        "flake.py",  # Not compatible yet with the UI, unclear semantics, maybe it's just an internal thing
     ]
 
     cli_path = Path("clan_cli").resolve()