Overload templated class member function using enable_if_t

I am trying to implement a class and overload its templated member functions through enable_if.

class Foo {
public:

  template <typename T, typename = enable_if_t<std::is_arithmetic<T>::value>>
  void do() {}

  template <typename T, typename = enable_if_t<!std::is_arithmetic<T>::value>>
  void do() {}

};

Apparently the idea is to separate the instantiation exclusively of T with respect to arithmetic types. However, the compiler complains about template <class T, class> void do() cannot be overloaded. How exactly this can happen? What should I do to resolve this problem?