Calling struct method with reflection

I'm having trouble calling a method in my recursive reflection function. Here it is:

func setPropertiesFromFlags(v reflect.Value, viper *viper.Viper) {
    t := v.Type()
    method := v.MethodByName("Parse")
    fmt.Println(method)
    for i := 0; i < t.NumField(); i++ {
        field := t.Field(i)
        switch field.Type.Kind() {
        case reflect.Struct:
            setPropertiesFromFlags(v.Field(i), viper)
        case reflect.String:
            v.Field(i).SetString(viper.GetString(field.Tag.Get("name")))
    }
}

I'm calling the function with:

// Config struct passed to all services
type Config struct {
    common.Config
    common.ServerConfig
    common.AuthConfig
}
// Parse the thing already!
func (c *Config) Parse() {
    fmt.Println("RUN THIS THING")
}
int main() {
   setPropertiesFromFlags(reflect.ValueOf(c).Elem(), viper)
}

What I'm hoping for is to get my parse method in the place where I'm printing method and run .Call() against it. Instead it's printing out: <invalid reflect.Value> which I cannot call against.

I suppose I'm having trouble wrapping my head around the return values of each method. I know I have to use ValueOf to pull the value but it seems any permutation I try I'm getting the methods from the reflection class itself :-p sigh