diff --git a/compiler/cpp/src/thrift/generate/t_erl_generator.cc b/compiler/cpp/src/thrift/generate/t_erl_generator.cc
index 7dbe9f1..8289705 100644
--- a/compiler/cpp/src/thrift/generate/t_erl_generator.cc
+++ b/compiler/cpp/src/thrift/generate/t_erl_generator.cc
@@ -811,7 +811,7 @@
     return type_name(type) + "()";
   } else if (type->is_map()) {
     if (maps_) {
-      return "map()";
+      return "maps:map()";
     } else {
       return "dict:dict()";
     }