diff --git a/paddlespeech/s2t/decoders/ctcdecoder/swig/setup.py b/paddlespeech/s2t/decoders/ctcdecoder/swig/setup.py
index 2b9a20768eebb891447b6eefa17a274d1eb1c5d2..d06125b7b85c8ba74433c96e6da32d39f7828ab3 100644
--- a/paddlespeech/s2t/decoders/ctcdecoder/swig/setup.py
+++ b/paddlespeech/s2t/decoders/ctcdecoder/swig/setup.py
@@ -134,4 +134,4 @@ setup(
     url="https://github.com/PaddlePaddle/PaddleSpeech",
     license='Apache 2.0',
     ext_modules=decoders_module,
-    py_modules=['swig_decoders'] )
+    py_modules=['swig_decoders'])