diff --git a/velocity-animate/velocity-animate.d.ts b/velocity-animate/velocity-animate.d.ts
index 00c421896..6946da972 100644
--- a/velocity-animate/velocity-animate.d.ts
+++ b/velocity-animate/velocity-animate.d.ts
@@ -34,6 +34,16 @@ declare module jquery.velocity {
 		animate(options: {elements: NodeListOf<HTMLElement>; properties: Object; options: VelocityOptions}): void;
 		animate(elements: NodeListOf<HTMLElement>, properties: Object, options: VelocityOptions): void;
 		animate(element: HTMLElement, properties: Object, options: VelocityOptions): void;
+		/** 
+        	 * Get a hook value. Hooks are the subvalues of multi-value CSS properties.
+        	 * It features the same API as $.css().
+        	 */
+        	hook(element: HTMLElement|JQuery, cssKey: string): string;
+        	/** 
+        	 * Set a hook value. Hooks are the subvalues of multi-value CSS properties.
+        	 * It features the same API as $.css().
+        	 */
+        	hook(element: HTMLElement|JQuery, cssKey: string, cssValue: string): void;
 	}
 
 	interface VelocityOptions {