diff --git a/test/ThriftTest.thrift b/test/ThriftTest.thrift
index fd0ac97..8c91cb7 100644
--- a/test/ThriftTest.thrift
+++ b/test/ThriftTest.thrift
@@ -2,6 +2,7 @@
 cpp_namespace thrift.test
 ruby_namespace Thrift.Test
 perl_package ThriftTest
+csharp_namespace Thrift.Test
 
 enum Numberz
 {