diff --git a/types/simple-oauth2/index.d.ts b/types/simple-oauth2/index.d.ts
index 499f39e56e..c1eb324348 100644
--- a/types/simple-oauth2/index.d.ts
+++ b/types/simple-oauth2/index.d.ts
@@ -44,8 +44,12 @@ export interface ModuleOptions {
 
 export type TokenType = "access_token" | "refresh_token";
 
+export interface Token {
+    [x: string]: any;
+}
+
 export interface AccessToken {
-    token: {};
+    token: Token;
 
     /** Check if the access token is expired or not */
     expired(): boolean;
@@ -56,9 +60,6 @@ export interface AccessToken {
     revoke(tokenType: TokenType, callback?: (error: any) => void): Bluebird<void>;
 }
 
-export interface Token {
-    [x: string]: any;
-}
 export type AuthorizationCode = string;
 export interface AuthorizationTokenConfig {
     code: AuthorizationCode;