Html.ActionLink gotcha

For some reason I keep getting tripped up by the following sort of code: <br /><%=Html.ActionLink("Back to List", "Details", "ActionRule", new { id = Model.ActionRuleId } )%><br /> Seems simple enough but you end up with a link like : http://localhost:5825/ActionRule/Details?Length=10 Easy fix is to add a null parameter to the end of the list. Why? Well the compiler treats the first call as: System.Web.Mvc.Html.LinkExtensions.ActionLink(this System.Web.Mvc.HtmlHelper htmlHelper, string linkText, string actionName, object routeValues, object htmlAttributes) Obviously the parameters are resolved incorrectly as there is no method signature such as: System.Web.Mvc.Html.LinkExtensions.ActionLink(this System.Web.Mvc.HtmlHelper, string, string, string, object) I really should write an extension method to cover this (fairly common for me) scenario. Who cares you say? Well to this point it seems that this is the only situation using ASP.Net MVC where I've had to add a null parameter on the end of a call to get the desired result. Not saying it's a bug...just interesting none the less.