diff --git a/angularjs/angular-animate.d.ts b/angularjs/angular-animate.d.ts
index d4ec6eea2a..2e80ceca27 100644
--- a/angularjs/angular-animate.d.ts
+++ b/angularjs/angular-animate.d.ts
@@ -26,14 +26,24 @@ declare module ng.animate {
         eventFn(element: Node, doneFn: () => void): Function;
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // AngularProvider
+    // see http://docs.angularjs.org/api/ngAnimate/provider/$animateProvider
+    ///////////////////////////////////////////////////////////////////////////
     interface IAnimateProvider {
         /**
          * Registers a new injectable animation factory function.
+         *
+         * @param name The name of the animation.
+         * @param factory The factory function that will be executed to return the animation object.
          */
-        register(name: string, factory: () => IAnimateCallbackObject): void;
+        register(name: string, factory: () => ng.IAnimateCallbackObject);
 
         /**
          * Gets and/or sets the CSS class expression that is checked when performing an animation.
+         *
+         * @param expression The className expression which will be checked against all animations.
+         * @returns The current CSS className expression value. If null then there is no expression value.
          */
         classNameFilter(expression?: RegExp): RegExp;
     }
diff --git a/angularjs/angular.d.ts b/angularjs/angular.d.ts
index 7bc1672840..074e980e48 100755
--- a/angularjs/angular.d.ts
+++ b/angularjs/angular.d.ts
@@ -594,6 +594,35 @@ declare module ng {
         cancel(promise: IPromise<any>): boolean;
     }
 
+    ///////////////////////////////////////////////////////////////////////////
+    // AngularProvider
+    // see http://docs.angularjs.org/api/ng/provider/$animateProvider
+    ///////////////////////////////////////////////////////////////////////////
+    interface IAnimateProvider {
+        /**
+         * Registers a new injectable animation factory function.
+         *
+         * @param name The name of the animation.
+         * @param factory The factory function that will be executed to return the animation object.
+         */
+        register(name: string, factory: () => IAnimateCallbackObject);
+
+        /**
+         * Gets and/or sets the CSS class expression that is checked when performing an animation.
+         *
+         * @param expression The className expression which will be checked against all animations.
+         * @returns The current CSS className expression value. If null then there is no expression value.
+         */
+        classNameFilter(expression?: RegExp): RegExp;
+    }
+
+    /**
+     * The animation object which contains callback functions for each event that is expected to be animated.
+     */
+    interface IAnimateCallbackObject {
+        eventFn(element: Node, doneFn: () => void): Function;
+    }
+
     ///////////////////////////////////////////////////////////////////////////
     // FilterService
     // see http://docs.angularjs.org/api/ng.$filter