diff --git a/include/random b/include/random
index f1076f9..46cbc4b 100644
--- a/include/random
+++ b/include/random
@@ -1835,7 +1835,7 @@
     // types
     typedef _UIntType result_type;
 
-//private:
+private:
     result_type __x_;
 
     static _LIBCPP_CONSTEXPR const result_type _Mp = result_type(~0);