diff --git a/compiler/cpp/src/parse/t_type.h b/compiler/cpp/src/parse/t_type.h
index b9da4fd..bf8d7fa 100644
--- a/compiler/cpp/src/parse/t_type.h
+++ b/compiler/cpp/src/parse/t_type.h
@@ -29,7 +29,7 @@
  public:
   virtual ~t_type() {}
 
-  virtual void set_name(std::string name) {
+  virtual void set_name(const std::string& name) {
     name_ = name;
   }