diff --git a/test/OptionalRequiredTest.thrift b/test/OptionalRequiredTest.thrift
index 42e7879..a635813 100644
--- a/test/OptionalRequiredTest.thrift
+++ b/test/OptionalRequiredTest.thrift
@@ -1,4 +1,4 @@
-cpp_namespace thrift.test
+namespace cpp thrift.test
 
 struct OldSchool {
   1: i16    im_int;