diff --git a/python/paddle/nn/utils/spectral_norm_hook.py b/python/paddle/nn/utils/spectral_norm_hook.py
index 75266abdf0d13257c48e11113e9474cb9847b6ea..56c9e83c38b0689b93387753745a7f2a50990a72 100644
--- a/python/paddle/nn/utils/spectral_norm_hook.py
+++ b/python/paddle/nn/utils/spectral_norm_hook.py
@@ -178,7 +178,7 @@ def spectral_norm(layer,
        .. code-block:: python
 
             from paddle.nn import Conv2D
-            from paddle.nn.utils import Spectralnorm
+            from paddle.nn.utils import spectral_norm
 
             conv = Conv2D(3, 1, 3)
             sn_conv = spectral_norm(conv)