diff --git a/lerobot/scripts/server/buffer.py b/lerobot/scripts/server/buffer.py
index 185412fd..8db1a82c 100644
--- a/lerobot/scripts/server/buffer.py
+++ b/lerobot/scripts/server/buffer.py
@@ -946,6 +946,7 @@ if __name__ == "__main__":
         gripper_penalty values in complementary_info.
         """
         import time
+
         from lerobot.common.datasets.lerobot_dataset import LeRobotDataset
 
         print("Loading dataset with complementary info...")