diff --git a/examples/python/helloworld/async_greeter_client.py b/examples/python/helloworld/async_greeter_client.py
index e86cd30f8ea..5a58e703fd2 100644
--- a/examples/python/helloworld/async_greeter_client.py
+++ b/examples/python/helloworld/async_greeter_client.py
@@ -1,4 +1,4 @@
-# Copyright 2015 gRPC authors.
+# Copyright 2020 gRPC authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-"""The Python implementation of the GRPC helloworld.Greeter client."""
+"""The Python AsyncIO implementation of the GRPC helloworld.Greeter client."""
 
 import logging
 import asyncio
diff --git a/examples/python/helloworld/async_greeter_server.py b/examples/python/helloworld/async_greeter_server.py
index c772bcac57d..8ab1e308792 100644
--- a/examples/python/helloworld/async_greeter_server.py
+++ b/examples/python/helloworld/async_greeter_server.py
@@ -1,4 +1,4 @@
-# Copyright 2015 gRPC authors.
+# Copyright 2020 gRPC authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,9 +11,8 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-"""The Python implementation of the GRPC helloworld.Greeter server."""
+"""The Python AsyncIO implementation of the GRPC helloworld.Greeter server."""
 
-from concurrent import futures
 import logging
 import asyncio
 import grpc
@@ -24,7 +23,7 @@ import helloworld_pb2_grpc
 
 class Greeter(helloworld_pb2_grpc.GreeterServicer):
 
-    def SayHello(self, request, context):
+    async def SayHello(self, request, context):
         return helloworld_pb2.HelloReply(message='Hello, %s!' % request.name)