diff --git a/ace.d.ts b/ace.d.ts
index c230a9133a5..8487bee8a32 100644
--- a/ace.d.ts
+++ b/ace.d.ts
@@ -216,7 +216,7 @@ export namespace Ace {
     wrapBehavioursEnabled: boolean;
     enableAutoIndent: boolean;
     autoScrollEditorIntoView: boolean;
-    keyboardHandler: string;
+    keyboardHandler: string | null;
     placeholder: string;
     value: string;
     session: EditSession;
@@ -245,6 +245,7 @@ export namespace Ace {
     off(name: string, callback: Function): void;
     removeListener(name: string, callback: Function): void;
     removeEventListener(name: string, callback: Function): void;
+    removeAllListeners(name?: string): void;
   }
 
   export interface Point {
@@ -280,7 +281,7 @@ export namespace Ace {
   }
 
   export interface MarkerLike {
-    range: Range;
+    range?: Range;
     type: string;
     renderer?: MarkerRenderer;
     clazz: string;