[Boost-users] compilation error with mpl transform

Is the following supposed to work? I feel like I'm missing something obvious: typedef boost::mpl::vector<int, float, double> vec_type; template<template<class T>, class U> struct parameterize { typedef T<U> type; }; template<class T> class wrapper { }; typedef boost::mpl::transform<vec_type, parameterize<wrapper, boost::mpl::_1> > wrapped_vec; When I do this I get compile errors on MSVC 9.0. However if I remove the template template and hardcode T to wrapper in struct parameterize, it works fine.