diff --git a/types/angular-material/index.d.ts b/types/angular-material/index.d.ts
index 810b043a86..c9b7f74179 100644
--- a/types/angular-material/index.d.ts
+++ b/types/angular-material/index.d.ts
@@ -434,6 +434,7 @@ declare module 'angular' {
             addClass(newClass: string): void;
             removeClass(oldClass: string): void;
             toggleClass(toggleClass: string): void;
+            updateAnimation(animation: IPanelAnimation): void;
             updatePosition(position: IPanelPosition): void;
             registerInterceptor(type: string, callback: () => IPromise<any>): IPanelRef;
             removeInterceptor(type: string, callback: () => IPromise<any>): IPanelRef;