diff --git a/ckeditor/ckeditor.d.ts b/ckeditor/ckeditor.d.ts
index f079d6960c..a1bb1c4818 100644
--- a/ckeditor/ckeditor.d.ts
+++ b/ckeditor/ckeditor.d.ts
@@ -678,7 +678,7 @@ declare module CKEDITOR {
         getClipboardData(options: Object, callback: Function): void;
         getColorFromDialog(callback: Function, scope?: Object): void;
         getCommand(commandName: string): command;
-        getData(noEvents: Object): string;
+        getData(noEvents?: Object): string;
         getMenuItem(name: string): Object;
         getResizable(forContents: boolean): dom.element;
         getSelection(forceRealSelection?: boolean): dom.selection;
@@ -707,7 +707,7 @@ declare module CKEDITOR {
         selectionChange(checkNow?: boolean): void;
         setActiveEnterMode(enterMode: number, shiftEnterMode: number): void;
         setActiveFilter(filter: filter): void;
-        setData(data: string, callback: Function, internal: boolean): void;
+        setData(data: string, options?: { internal?: boolean; callback?: Function; noSnapshot?: boolean; }): void;
         setKeystroke(keystroke: number, behavior?: string): void;
         setKeystroke(keystroke: any[], behavior?: string): void;
         setKeystroke(keystroke: number, behavior?: boolean): void;
@@ -963,4 +963,4 @@ declare module CKEDITOR {
         addFocusable(element: CKEDITOR.dom.element, index: number): void;
     }
 
-}
\ No newline at end of file
+}