diff --git a/compiler/cpp/src/parse/t_program.h b/compiler/cpp/src/parse/t_program.h
index c973b13..812106c 100644
--- a/compiler/cpp/src/parse/t_program.h
+++ b/compiler/cpp/src/parse/t_program.h
@@ -381,7 +381,7 @@
   std::map<std::string, std::string> namespaces_;
 
   // Annotations for dynamic namespaces
-  std::map<std::string, std::map<std::string, std::string>> namespace_annotations_;
+  std::map<std::string, std::map<std::string, std::string> > namespace_annotations_;
 
   // C++ extra includes
   std::vector<std::string> cpp_includes_;