diff --git a/python/paddle/nn/functional/loss.py b/python/paddle/nn/functional/loss.py
index b2b305fdf8161e6e8ad1f5e387a0bc18165ceba0..21b1e444ef844ed587c483a6565b87060008497a 100755
--- a/python/paddle/nn/functional/loss.py
+++ b/python/paddle/nn/functional/loss.py
@@ -1801,7 +1801,7 @@ def cross_entropy(input,
             weight_gather_reshape = reshape(weight_gather, shape=out_shape)
             out = paddle.cast(out, weight_gather_reshape.dtype)
         else:
-			if input.shape[-1] != weight.shape[-1]:
+            if input.shape[-1] != weight.shape[-1]:
                 raise ValueError("input's class_dimension({}) must equal to "\
                         "weight's class_dimension({}) "\
                             "when weight is provided"