diff --git a/compiler/cpp/src/generate/t_rb_generator.cc b/compiler/cpp/src/generate/t_rb_generator.cc
index 2de2ed9..edfad0f 100644
--- a/compiler/cpp/src/generate/t_rb_generator.cc
+++ b/compiler/cpp/src/generate/t_rb_generator.cc
@@ -105,7 +105,7 @@
  */
 void t_rb_generator::generate_enum(t_enum* tenum) {
   indent(f_types_) <<
-    "module " << tenum->get_name() << endl;
+    "module " << capitalize(tenum->get_name()) << endl;
   indent_up();
   
   vector<t_enum_value*> constants = tenum->get_constants();