diff --git a/mindspore/ops/operations/nn_ops.py b/mindspore/ops/operations/nn_ops.py
index f3ab97b96af40bc471b64b6a189dd8fc7c229be4..40e8a82a762c0be0b6f6f7258091b4605500e8fb 100644
--- a/mindspore/ops/operations/nn_ops.py
+++ b/mindspore/ops/operations/nn_ops.py
@@ -5308,7 +5308,7 @@ class CTCLoss(PrimitiveWithInfer):
 
     Outputs:
         - **loss** (Tensor) - A tensor containing log-probabilities, the shape is :math:`(batch_size)`. The tensor has
-        the same type with `inputs`.
+          the same type with `inputs`.
         - **gradient** (Tensor) - The gradient of `loss`, has the same type and shape with `inputs`.
 
     Examples: