Password reset link using identity and web api - email

Question

I'm trying to create in my WebApi controller an action to send an email with a passwors reset link. But when the email arrives, the link url is "http://Account/ResetPassword/........"
Please, note the site url is missing from de link. I need something like "http://www.domain.com/account/resetpassword/........."
This is my code. Thanks!
[System.Web.Http.AllowAnonymous]
[System.Web.Http.HttpGet]
[System.Web.Http.Route("ForgotPassword")]
public async Task<IHttpActionResult> ForgotPassword(string email)
{
if (string.IsNullOrWhiteSpace(email))
{
ModelState.AddModelError("", "Email is required");
return BadRequest(ModelState);
}
var user = await AppUserManager.FindByNameAsync(email);
if (user != null)
{
string code = await AppUserManager.GeneratePasswordResetTokenAsync(user.Id);
var urlHelper = new UrlHelper(HttpContext.Current.Request.RequestContext);
urlHelper.Action("ResetPassword", "Account", new RouteValueDictionary(new { userId = user.Id, code }), protocol: Request.RequestUri.Scheme);
await AppUserManager.SendEmailAsync(user.Id, "Redefinir Senha", "Redefina sua senha clicando aqui");
return Ok();
}
return NotFound();
}