diff --git a/src/controller/authorization.ts b/src/controller/authorization.ts
index 7129f99..cf9cccf 100644
--- a/src/controller/authorization.ts
+++ b/src/controller/authorization.ts
@@ -99,7 +99,6 @@ export const authorization = wrap(async (req, res) => {
     throw new InvalidClient('Client not found');
   }
 
-  // TODO: multiple redirect URI
   if (!(await oauth2.model.client.hasRedirectUri(client))) {
     throw new UnsupportedResponseType('The client has not set a redirect uri');
   } else if (
diff --git a/src/model/model.ts b/src/model/model.ts
index 67963bd..1e6ba76 100644
--- a/src/model/model.ts
+++ b/src/model/model.ts
@@ -47,6 +47,7 @@ export interface OAuth2RefreshToken {
  * OAuth2 implicit user model
  */
 export interface OAuth2User {
+  id: string | number;
   username: string;
   password: string;
 }
diff --git a/src/provider.ts b/src/provider.ts
index 64d3078..dd7091a 100644
--- a/src/provider.ts
+++ b/src/provider.ts
@@ -20,8 +20,8 @@ export class OAuth2Provider implements OAuth2 {
 
   express(): RequestHandler {
     return (req, _res, next) => {
-      req.oauth2.logger.debug('OAuth2 Injected into request');
       req.oauth2 = this;
+      this.logger.debug('OAuth2 Injected into request');
       next();
     };
   }