diff --git a/test/DebugProtoTest.thrift b/test/DebugProtoTest.thrift
index bd13d44..cdbea2a 100644
--- a/test/DebugProtoTest.thrift
+++ b/test/DebugProtoTest.thrift
@@ -1,4 +1,4 @@
-cpp_namespace thrift.test
+namespace cpp thrift.test
 
 struct Doubles {
  1: double nan,