如何从“ wire.FieldsOf”取回指针提供者？

I am trying to use google wire to wire a config field and failing hard at it.

I have the following wire entrypoint

type Config struct {
    UserConfig UserConfig
}

func initialize(ctx context.Context, cfg *Config) (*st, func(), error) {
    panic( // panic to be replaced by generated code
        wire.Build(
            InitializeUser,
            wire.FieldsOf(new(Config), "UserConfig"),
        ),
    )
}

func InitializeUser(config *UserConfig) *User {
    // initialize user from user config
}

I am trying to make the UserConfig field in the Configstruct a provider without having to write a simple wrapper initializer just for that.

It is my understanding that wire.FieldsOf is supposed to do exactly this however it does not seem to work (keep geting no provider found for *Config). My guess is it only provides a UserConfig and not a *UserConfig.

Without changing the UserConfig field to a pointer or writing a initializer wrapper that takes a config and returns a *UserConfig, is there any way to do this in wire?