Fixing cpp examples.
diff --git a/examples/cpp/cpptutorial.md b/examples/cpp/cpptutorial.md
index 78de014..cd1cddb 100644
--- a/examples/cpp/cpptutorial.md
+++ b/examples/cpp/cpptutorial.md
@@ -245,7 +245,7 @@
First we need to create a gRPC *channel* for our stub, specifying the server address and port we want to connect to without SSL:
```cpp
-grpc::CreateChannel("localhost:50051", grpc::InsecureCredentials());
+grpc::CreateChannel("localhost:50051", grpc::InsecureChannelCredentials());
```
Now we can use the channel to create our stub using the `NewStub` method provided in the `RouteGuide` class we generated from our .proto.