diff --git a/angular-material/angular-material.d.ts b/angular-material/angular-material.d.ts
index 31da141bf9..da20af95fc 100644
--- a/angular-material/angular-material.d.ts
+++ b/angular-material/angular-material.d.ts
@@ -160,6 +160,7 @@ declare namespace angular.material {
         hideDelay(delay: number): T;
         position(position: string): T;
         parent(parent?: string|Element|JQuery): T; // default: root node
+        toastClass(toastClass: string): T;
     }
 
     interface ISimpleToastPreset extends IToastPreset<ISimpleToastPreset> {