Wrong type of reflected struct

I have 2 different packages(pkg1, pkg2), in first i have code that calls function from another package

file#1

package pkg1
import "pkg2"
import "reflect"

type User struct {
  name string
  ...
}

func main() {
  fmt.Println(reflect.TypeOf((*User)(nil)) //=> *User
  pkg2.RegisterStruct(reflect.TypeOf((*User)(nil))
}

file#2

package pkg2

import "reflect"

func RegisterStruct(u interface{}) {
 fmt.Println(u) //=> *reflect.rtype
}

Why type was reflect.rtype instead of *User ? And how do i correctly pass type to another pkg?