diff --git a/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp b/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp
index 08b51920a..992764b00 100644
Binary files a/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp and b/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/.train.py.swp differ
diff --git a/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/train.py b/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/train.py
index d1fd38abd..3584067f4 100755
--- a/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/train.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless_d2v_v2/train.py
@@ -877,7 +877,7 @@ def compute_validation_loss(
 def train_one_epoch(
     params: AttributeDict,
     model: Union[nn.Module, DDP],
-    optimizer: torch.optim.Optimizer,
+    optimizer: torch.optim.Optimizer or [torch.optim.Optimizer, torch.optim.Optimizer],
     scheduler: LRSchedulerType,
     sp: spm.SentencePieceProcessor,
     train_dl: torch.utils.data.DataLoader,