diff --git a/client.py b/client.py
index 66608ef..5f2cbb0 100644
--- a/client.py
+++ b/client.py
@@ -41,8 +41,8 @@
 
 class RpcClient(object):
     def __init__(self):
-        channel = grpc.insecure_channel('localhost:50051')
-        self.stub = helloworld_pb2_grpc.GreeterStub(channel)
+        self.channel = grpc.insecure_channel('localhost:50051')
+        self.stub = helloworld_pb2_grpc.GreeterStub(self.channel)
 
     def say_hi(self ):
         response = self.stub.SayHello(helloworld_pb2.HelloRequest(name='you'))