diff --git a/angular-rx/rx.angular.d.ts b/angular-rx/rx.angular.d.ts
index e69de29bb..f32933f6d 100644
--- a/angular-rx/rx.angular.d.ts
+++ b/angular-rx/rx.angular.d.ts
@@ -0,0 +1,18 @@
+/// <reference path="../angularjs/angular.d.ts" />
+/// <reference path="../rx/rx.d.ts" />
+/// <reference path="../rx/rx.time.d.ts" />
+
+declare module Rx {
+
+    interface IObservable<T> {
+        safeApply($scope: ng.IScope, callback: (data: any) => void);
+    }
+}
+
+declare module rx.angular {
+    
+    export interface IRxScope extends ng.IScope {
+        $toObservable(property: string): Rx.Observable<any>;
+    }    
+}
+