diff --git a/test/ThriftTest.thrift b/test/ThriftTest.thrift
index 94a8548..ddb66e8 100644
--- a/test/ThriftTest.thrift
+++ b/test/ThriftTest.thrift
@@ -2,7 +2,7 @@
 namespace cpp thrift.test
 ruby_namespace Thrift.Test
 perl_package ThriftTest
-csharp_namespace Thrift.Test
+namespace csharp Thrift.Test
 
 enum Numberz
 {