diff --git a/winjs/winjs.d.ts b/winjs/winjs.d.ts
index fa3121064..c6a2958cd 100644
--- a/winjs/winjs.d.ts
+++ b/winjs/winjs.d.ts
@@ -7325,7 +7325,7 @@ declare module WinJS.UI.Pages {
 		 * @param options The options passed to the constructor of the page.
 		 * @returns A promise that is fulfilled when initialization is complete, if asynchronous processing is necessary. If not, returns nothing.
 		**/
-		init?(element: HTMLElement, options?: any): Promise<any>;
+		init?(element: HTMLElement, options: any): Promise<any>;
 
 		/**
 		 * Creates DOM objects from the content in the specified URI. This method is called after the PageControl is defined and before the init method is called.
@@ -7340,7 +7340,7 @@ declare module WinJS.UI.Pages {
 		 * @param options The options that are to be passed to the constructor of the page.
 		 * @returns A promise that is fulfilled when initialization is complete, if asynchronous processing is necessary. If not, returns nothing.
 		**/
-		processed?(element: HTMLElement, options?: any): Promise<any>;
+		processed?(element: HTMLElement, options: any): Promise<any>;
 
 		/**
 		 * Called after all initialization and rendering is complete. At this time, the element is ready for use.
@@ -7348,7 +7348,7 @@ declare module WinJS.UI.Pages {
 		 * @param options An object that contains one or more property/value pairs to apply to the PageControl. How these property/value pairs are used (or not used) depends on the implementation of that particular PageControl.
 		 * @returns A promise that is fulfilled when the element is ready for use, if asynchronous processing is necessary. If not, returns nothing.
 		**/
-		ready?(element: HTMLElement, options?: any): Promise<any>;
+		ready?(element: HTMLElement, options: any): Promise<any>;
 
 		/**
 		 * Takes the elements returned by the load method and attaches them to the specified element.