diff --git a/compiler/cpp/src/parse/t_field.h b/compiler/cpp/src/parse/t_field.h
index 67a2125..4217a51 100644
--- a/compiler/cpp/src/parse/t_field.h
+++ b/compiler/cpp/src/parse/t_field.h
@@ -133,6 +133,7 @@
     }
   };
 
+  std::map<std::string, std::string> annotations_;
 
  private:
   t_type* type_;