diff --git a/icefall/checkpoint.py b/icefall/checkpoint.py
index f7712628b..ea50b32a9 100644
--- a/icefall/checkpoint.py
+++ b/icefall/checkpoint.py
@@ -76,9 +76,7 @@ def save_checkpoint(
 
     if isinstance(model, DDP):
         model = model.module
-    # import pdb
-
-    # pdb.set_trace()
+    
     checkpoint = {
         "model": model.state_dict(),
         "optimizer": optimizer.state_dict() if optimizer is not None else None,