diff --git a/angular-ui-router/angular-ui-router.d.ts b/angular-ui-router/angular-ui-router.d.ts
index 3ec31968c..1164079e7 100644
--- a/angular-ui-router/angular-ui-router.d.ts
+++ b/angular-ui-router/angular-ui-router.d.ts
@@ -71,10 +71,16 @@ declare module angular.ui {
          * Arbitrary data object, useful for custom configuration.
          */
         data?: any;
+        
         /**
          * Boolean (default true). If false will not re-trigger the same state just because a search/query parameter has changed. Useful for when you'd like to modify $location.search() without triggering a reload.
          */
         reloadOnSearch?: boolean;
+        
+        /**
+         * Boolean (default true). If false will reload state on everytransitions. Useful for when you'd like to restore all data  to its initial state.
+         */
+        cache?: boolean;
     }
 
     interface IStateProvider extends angular.IServiceProvider {