diff --git a/egs/wenetspeech/ASR/transducer_stateless/train.py b/egs/wenetspeech/ASR/transducer_stateless/train.py
index e2a382910..9ce51f993 100755
--- a/egs/wenetspeech/ASR/transducer_stateless/train.py
+++ b/egs/wenetspeech/ASR/transducer_stateless/train.py
@@ -37,7 +37,6 @@ from lhotse.utils import fix_random_seed
 from model import Transducer
 from torch import Tensor
 from torch.nn.parallel import DistributedDataParallel as DDP
-from torch.nn.utils import clip_grad_norm_
 from torch.utils.tensorboard import SummaryWriter
 from transformer import Noam