diff --git a/lerobot/common/tdmpc.py b/lerobot/common/tdmpc.py
index 902673aa..f8133279 100644
--- a/lerobot/common/tdmpc.py
+++ b/lerobot/common/tdmpc.py
@@ -51,7 +51,7 @@ class TOLD(nn.Module):
         """Predicts next latent state (d) and single-step reward (R)."""
         x = torch.cat([z, a], dim=-1)
         return self._dynamics(x), self._reward(x)
-    
+
     def next_dynamics(self, z, a):
         """Predicts next latent state (d)."""
         x = torch.cat([z, a], dim=-1)
diff --git a/lerobot/scripts/eval.py b/lerobot/scripts/eval.py
index 62d482e0..12c5d14b 100644
--- a/lerobot/scripts/eval.py
+++ b/lerobot/scripts/eval.py
@@ -1,3 +1,4 @@
+import threading
 from pathlib import Path
 
 import hydra
@@ -11,11 +12,12 @@ from torchrl.envs import EnvBase
 from lerobot.common.envs.factory import make_env
 from lerobot.common.tdmpc import TDMPC
 from lerobot.common.utils import set_seed
-import threading
+
 
 def write_video(video_path, stacked_frames, fps):
     imageio.mimsave(video_path, stacked_frames, fps=fps)
 
+
 def eval_policy(
     env: EnvBase,
     policy: TensorDictModule = None,