diff --git a/python/paddle_serving_client/__init__.py b/python/paddle_serving_client/__init__.py
index acece304414d8b5ebf7f1937cfa495c58e7ac60d..39e06ef14d9f2ab64bee0730ef29b03a5e2dc923 100644
--- a/python/paddle_serving_client/__init__.py
+++ b/python/paddle_serving_client/__init__.py
@@ -93,7 +93,7 @@ class Client(object):
         lib_path = os.path.dirname(paddle_serving_client.__file__)
         client_path = os.path.join(lib_path, 'serving_client.so')
         lib_path = os.path.join(lib_path, 'lib')
-        os.popen('patchelf --set-rpath {} {}'.format(lib_path, client_path))
+        os.system('patchelf --set-rpath {} {}'.format(lib_path, client_path))
 
     def load_client_config(self, path):
         from .serving_client import PredictorClient