diff --git a/fs-extra/fs-extra.d.ts b/fs-extra/fs-extra.d.ts
index d997d12a89..e4f800185f 100644
--- a/fs-extra/fs-extra.d.ts
+++ b/fs-extra/fs-extra.d.ts
@@ -70,8 +70,8 @@ declare module "fs-extra" {
 	export function readJSON(file: string, callback?: (err: Error) => void): void;
 	export function readJSON(file: string, options?: OpenOptions, callback?: (err: Error) => void): void;
 
-	export function readJsonSync(file: string, options?: OpenOptions): void;
-	export function readJSONSync(file: string, options?: OpenOptions): void;
+	export function readJsonSync(file: string, options?: OpenOptions): any;
+	export function readJSONSync(file: string, options?: OpenOptions): any;
 
 	export function remove(dir: string, callback?: (err: Error) => void): void;
 	export function removeSync(dir: string): void;