diff --git a/nanochat/checkpoint_manager.py b/nanochat/checkpoint_manager.py
index 96588ec..e788b73 100644
--- a/nanochat/checkpoint_manager.py
+++ b/nanochat/checkpoint_manager.py
@@ -22,7 +22,6 @@ def log0(message):
 
 def save_checkpoint(checkpoint_dir, step, model_data, optimizer_data, meta_data, rank=0):
     os.makedirs(checkpoint_dir, exist_ok=True)
-    
     if rank == 0:
         # Save the model state parameters
         model_path = os.path.join(checkpoint_dir, f"model_{step:06d}.pt")