diff --git a/docs/zh_cn/tutorials/pruning/dygraph/filter_pruning.md b/docs/zh_cn/tutorials/pruning/dygraph/filter_pruning.md
index 146424eb41e8ab128c578a0e251f00154c707914..ae5cc9f3479e1f18cf90d355dab2bcfa36e95e9e 100644
--- a/docs/zh_cn/tutorials/pruning/dygraph/filter_pruning.md
+++ b/docs/zh_cn/tutorials/pruning/dygraph/filter_pruning.md
@@ -85,7 +85,7 @@ pruner = L1NormFilterPruner(net, [1, 3, 224, 224])
 如果本地文件系统已有一个存储敏感度信息（见4.1节）的文件，声明`L1NormFilterPruner`对象时，可以通过指定`sen_file`选项加载计算好的敏感度信息，如下：
 
 ```python
-#pruner = L1NormFilterPruner(net, [1, 3, 224, 224]), sen_file="./sen.pickle")
+#pruner = L1NormFilterPruner(net, [1, 3, 224, 224], sen_file="./sen.pickle")
 ```
 
 ### 4.1 卷积重要性分析