diff --git a/studio/backend/run.py b/studio/backend/run.py
index e906e0ad42..67c689699b 100644
--- a/studio/backend/run.py
+++ b/studio/backend/run.py
@@ -774,6 +774,7 @@ def _recorded_studio_pids() -> "set[int]":
             pids.add(int(text))
     return pids
 
+
 # Direct backend launches bypass the CLI's env re-export; do it here for
 # real custom roots so unsloth-zoo's import-time LLAMA_CPP_DEFAULT_DIR
 # picks up the custom build. Skip legacy-default to avoid flipping
diff --git a/unsloth_cli/tests/test_studio_stop.py b/unsloth_cli/tests/test_studio_stop.py
index c926b74aae..26140fc9a7 100644
--- a/unsloth_cli/tests/test_studio_stop.py
+++ b/unsloth_cli/tests/test_studio_stop.py
@@ -26,7 +26,13 @@ def _studio():
     return _studio_mod
 
 
-def _install(monkeypatch, tmp_path, *, alive, killed = None):
+def _install(
+    monkeypatch,
+    tmp_path,
+    *,
+    alive,
+    killed = None,
+):
     """Point the CLI at tmp_path and fake process liveness."""
     studio_mod = _studio()
     monkeypatch.setattr(studio_mod, "STUDIO_HOME", tmp_path)