diff --git a/src/csharp/Grpc.Core.Tests/ClientServerTest.cs b/src/csharp/Grpc.Core.Tests/ClientServerTest.cs
index 2aac4e3decdcf32c60344f43bd6ce1e344df3831..64ea21800fd55fd3ceebea7a570838aac2e130b4 100644
--- a/src/csharp/Grpc.Core.Tests/ClientServerTest.cs
+++ b/src/csharp/Grpc.Core.Tests/ClientServerTest.cs
@@ -46,25 +46,25 @@ namespace Grpc.Core.Tests
     public class ClientServerTest
     {
         const string Host = "127.0.0.1";
-        const string ServiceName = "/tests.Test";
+        const string ServiceName = "tests.Test";
 
         static readonly Method<string, string> EchoMethod = new Method<string, string>(
             MethodType.Unary,
-            "tests.Test",
+            ServiceName,
             "Echo",
             Marshallers.StringMarshaller,
             Marshallers.StringMarshaller);
 
         static readonly Method<string, string> ConcatAndEchoMethod = new Method<string, string>(
             MethodType.ClientStreaming,
-            "tests.Test",
+            ServiceName,
             "ConcatAndEcho",
             Marshallers.StringMarshaller,
             Marshallers.StringMarshaller);
 
         static readonly Method<string, string> NonexistentMethod = new Method<string, string>(
             MethodType.Unary,
-            "tests.Test",
+            ServiceName,
             "NonexistentMethod",
             Marshallers.StringMarshaller,
             Marshallers.StringMarshaller);
diff --git a/src/csharp/Grpc.Core.Tests/TimeoutsTest.cs b/src/csharp/Grpc.Core.Tests/TimeoutsTest.cs
index 14819b85e1b6932bbbb98feb193292d3c1a51527..fc395b0acdab7b6451ce3518e4205a63a0ac3d44 100644
--- a/src/csharp/Grpc.Core.Tests/TimeoutsTest.cs
+++ b/src/csharp/Grpc.Core.Tests/TimeoutsTest.cs
@@ -49,11 +49,11 @@ namespace Grpc.Core.Tests
     public class TimeoutsTest
     {
         const string Host = "localhost";
-        const string ServiceName = "/tests.Test";
+        const string ServiceName = "tests.Test";
 
         static readonly Method<string, string> TestMethod = new Method<string, string>(
             MethodType.Unary,
-            "tests.Test",
+            ServiceName,
             "Test",
             Marshallers.StringMarshaller,
             Marshallers.StringMarshaller);