diff --git a/compiler/cpp/src/generate/t_cpp_generator.cc b/compiler/cpp/src/generate/t_cpp_generator.cc
index 011f5eb..eb4b1dc 100644
--- a/compiler/cpp/src/generate/t_cpp_generator.cc
+++ b/compiler/cpp/src/generate/t_cpp_generator.cc
@@ -659,7 +659,7 @@
       indent_up();
       for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
         indent(out) << "&" <<
-          local_reflection_name("typespec", (*m_iter)->get_type()) << "," << endl;
+          local_reflection_name("typespec", (*m_iter)->get_type(), true) << "," << endl;
       }
       indent(out) << "&" <<
         local_reflection_name("typespec", g_type_void) << "," << endl;
@@ -2861,7 +2861,7 @@
 /**
  * Returns the symbol name of the local reflection of a type.
  */
-string t_cpp_generator::local_reflection_name(const char* prefix, t_type* ttype) {
+string t_cpp_generator::local_reflection_name(const char* prefix, t_type* ttype, bool external) {
   ttype = get_true_type(ttype);
 
   // We have to use the program name as part of the identifier because
@@ -2870,6 +2870,7 @@
   // trlo = Thrift Reflection LOcal.
   string prog;
   string name;
+  string nspace;
 
   // TODO(dreiss): Would it be better to pregenerate the base types
   //               and put them in Thrift.{h,cpp} ?
@@ -2891,7 +2892,13 @@
     name = ttype->get_ascii_fingerprint();
   }
 
-  return string() + "trlo_" + prefix + "_" + prog + "_" + name;
+  if (external &&
+      ttype->get_program() != NULL &&
+      ttype->get_program() != program_) {
+    nspace = namespace_prefix(ttype->get_program()->get_cpp_namespace());
+  }
+
+  return nspace + "trlo_" + prefix + "_" + prog + "_" + name;
 }
 
 string t_cpp_generator::get_include_prefix(const t_program& program) const {
diff --git a/compiler/cpp/src/generate/t_cpp_generator.h b/compiler/cpp/src/generate/t_cpp_generator.h
index bdbaf7d..ac11e3d 100644
--- a/compiler/cpp/src/generate/t_cpp_generator.h
+++ b/compiler/cpp/src/generate/t_cpp_generator.h
@@ -150,7 +150,7 @@
   std::string function_signature(t_function* tfunction, std::string prefix="", bool name_params=true);
   std::string argument_list(t_struct* tstruct, bool name_params=true);
   std::string type_to_enum(t_type* ttype);
-  std::string local_reflection_name(const char*, t_type* ttype);
+  std::string local_reflection_name(const char*, t_type* ttype, bool external=false);
 
   // These handles checking gen_dense_ and checking for duplicates.
   void generate_local_reflection(std::ofstream& out, t_type* ttype, bool is_definition);