diff --git a/test/distrib/csharp/DistribTest/DistribTestDotNet.csproj b/test/distrib/csharp/DistribTest/DistribTestDotNet.csproj
index f16a0f99591..d19eac91ba4 100644
--- a/test/distrib/csharp/DistribTest/DistribTestDotNet.csproj
+++ b/test/distrib/csharp/DistribTest/DistribTestDotNet.csproj
@@ -16,8 +16,13 @@
+
+
+
+
+
/usr/lib/mono/4.5-api
diff --git a/test/distrib/csharp/DistribTest/testcodegen.proto b/test/distrib/csharp/DistribTest/testcodegen.proto
new file mode 100644
index 00000000000..7845ac92c49
--- /dev/null
+++ b/test/distrib/csharp/DistribTest/testcodegen.proto
@@ -0,0 +1,29 @@
+// Copyright 2019 The gRPC Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// 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.
+
+syntax = "proto3";
+
+package testcodegen;
+
+service Greeter {
+ rpc SayHello (HelloRequest) returns (HelloReply) {}
+}
+
+message HelloRequest {
+ string name = 1;
+}
+
+message HelloReply {
+ string message = 1;
+}