diff --git a/mindspore/model_zoo/Bert_NEZHA/bert_for_pre_training.py b/mindspore/model_zoo/Bert_NEZHA/bert_for_pre_training.py
index a5507fa782b8979cb02f996c410e22fca51c55cc..30a1c5290c5aa4e5074965b40ff2c5dc35226aaf 100644
--- a/mindspore/model_zoo/Bert_NEZHA/bert_for_pre_training.py
+++ b/mindspore/model_zoo/Bert_NEZHA/bert_for_pre_training.py
@@ -35,7 +35,6 @@ GRADIENT_CLIP_VALUE = 1.0
 _nn_clip_by_norm = nn.ClipByNorm()
 clip_grad = C.MultitypeFuncGraph("clip_grad")
 @clip_grad.register("Number", "Number", "Tensor")
-
 def _clip_grad(clip_type, clip_value, grad):
     """
     Clip gradients.