diff --git a/package.json b/package.json
index a69d00c..ba0a8a5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@extollo/lib",
-  "version": "0.9.36",
+  "version": "0.9.37",
   "description": "The framework library that lifts up your code.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/src/auth/server/OAuth2Server.ts b/src/auth/server/OAuth2Server.ts
index 711cfc2..41f8d17 100644
--- a/src/auth/server/OAuth2Server.ts
+++ b/src/auth/server/OAuth2Server.ts
@@ -1,5 +1,5 @@
 import {Controller} from '../../http/Controller'
-import {Injectable} from '../../di'
+import {Inject, Injectable} from '../../di'
 import {ResponseObject, Route} from '../../http/routing/Route'
 import {Request} from '../../http/lifecycle/Request'
 import {Session} from '../../http/session/Session'
@@ -20,6 +20,7 @@ import {redirect} from '../../http/response/RedirectResponseFactory'
 import {AuthRequiredMiddleware} from '../middleware/AuthRequiredMiddleware'
 import {one} from '../../http/response/api'
 import {AuthenticatableRepository} from '../types'
+import {Logging} from '../../service/Logging'
 
 export enum GrantType {
     Client = 'client_credentials',
@@ -31,6 +32,9 @@ export const grantTypes: GrantType[] = [GrantType.Client, GrantType.Code, GrantT
 
 @Injectable()
 export class OAuth2Server extends Controller {
+    @Inject()
+    protected readonly logging!: Logging
+
     public static routes(): void {
         Route.get('/oauth2/authorize')
             .alias('@oauth2:authorize')
@@ -53,8 +57,7 @@ export class OAuth2Server extends Controller {
     }
 
     issue(request: Request, client: OAuth2Client): Awaitable<ResponseObject> {
-        const grant = request.safe('grant_type')
-            .in(grantTypes)
+        const grant = request.safe('grant_type').in(grantTypes)
 
         if ( grant === GrantType.Client ) {
             return this.issueFromClient(request, client)
@@ -70,6 +73,13 @@ export class OAuth2Server extends Controller {
         const username = this.request.safe('username').string()
         const password = this.request.safe('password').string()
 
+        this.logging.verbose('Attempting password grant token issue...')
+        this.logging.verbose({
+            scope,
+            username,
+            client,
+        })
+
         const userRepo = <AuthenticatableRepository> request.make(AuthenticatableRepository)
         const user = await userRepo.getByIdentifier(username)
         if ( !user || !(await user.validateCredential(password)) ) {
@@ -121,9 +131,16 @@ export class OAuth2Server extends Controller {
             throw new HTTPError(HTTPStatus.BAD_REQUEST)
         }
 
+        this.logging.debug('Client auth parts:')
+        this.logging.debug(authParts)
+
         const clientRepo = <ClientRepository> request.make(ClientRepository)
         const [clientId, clientSecret] = authParts
         const client = await clientRepo.find(clientId)
+
+        this.logging.verbose('Client:')
+        this.logging.verbose(client)
+
         if ( !client || client.secret !== clientSecret ) {
             throw new HTTPError(HTTPStatus.UNAUTHORIZED)
         }