diff --git a/src/urlMatcherFactory.js b/src/urlMatcherFactory.js
index 1870d2341..da17fd2c8 100644
--- a/src/urlMatcherFactory.js
+++ b/src/urlMatcherFactory.js
@@ -79,7 +79,7 @@ function UrlMatcher(pattern, caseInsensitiveMatch) {
   function addParameter(id, type) {
     if (!/^\w+(-+\w+)*$/.test(id)) throw new Error("Invalid parameter name '" + id + "' in pattern '" + pattern + "'");
     if (params[id]) throw new Error("Duplicate parameter name '" + id + "' in pattern '" + pattern + "'");
-    params[id] = type;
+    params[id] = angular.isNumber(type) ? new Type() : type;
   }
 
   function quoteRegExp(string) {
@@ -238,7 +238,7 @@ UrlMatcher.prototype.validates = function (params) {
     result = result && self.params[key].is(val);
   });
   return result;
-}
+};
 
 /**
  * @ngdoc function
diff --git a/test/stateSpec.js b/test/stateSpec.js
index e9036f835..9fa432c9c 100644
--- a/test/stateSpec.js
+++ b/test/stateSpec.js
@@ -91,6 +91,9 @@ describe('state', function () {
           }
         }
       })
+      .state('badParam', {
+        url: "/bad/{param:int}"
+      })
 
       .state('first', { url: '^/first/subpath' })
       .state('second', { url: '^/second' })
@@ -712,6 +715,7 @@ describe('state', function () {
         'about.person.item',
         'about.sidebar',
         'about.sidebar.item',
+        'badParam',
         'dynamicController',
         'first',
         'home',
@@ -779,6 +783,29 @@ describe('state', function () {
       expect($state.current.name).toBe('');
     }));
 
+    describe("typed parameter handling", function() {
+
+      it('should initialize parameters without a hacky empty test', inject(function ($urlMatcherFactory, $state) {
+        new UrlMatcher("");
+      }));
+
+      it('should ignore bad url parameters', inject(function ($state, $rootScope, $location, $urlMatcherFactory) {
+        $location.path("/bad/5");
+        $rootScope.$broadcast("$locationChangeSuccess");
+        $rootScope.$apply();
+        expect($state.current.name).toBe("badParam");
+
+        $state.transitionTo("about");
+        $rootScope.$apply();
+        expect($state.current.name).toBe('about');
+
+        $location.path("/bad/foo");
+        $rootScope.$broadcast("$locationChangeSuccess");
+        $rootScope.$apply();
+        expect($state.current.name).toBe("about");
+      }));
+    });
+
     it('should revert to last known working url on state change failure', inject(function ($state, $rootScope, $location, $q) {
       $state.transitionTo("about");
       $q.flush();