diff --git a/server/@types/peertube.d.ts b/server/@types/peertube.d.ts
index 4baa2b57..0e286a7b 100644
--- a/server/@types/peertube.d.ts
+++ b/server/@types/peertube.d.ts
@@ -127,14 +127,12 @@ interface PeerTubeHelpers {
   }
   videos: {
     loadByUrl: (url: string) => Promise<MVideoThumbnail>
-    // NB: loadByIdOrUUID was introduced in v3.1.0
     loadByIdOrUUID: (id: number | string) => Promise<MVideoThumbnail>
     removeVideo: (videoId: number) => Promise<void>
   }
   config: {
     getWebserverUrl: () => string
-    // getServerConfig comes with Peertube 3.2.0
-    getServerConfig?: () => Promise<ServerConfig>
+    getServerConfig: () => Promise<ServerConfig>
   }
   moderation: {
     blockServer: (options: { byAccountId: number, hostToBlock: string }) => Promise<void>
@@ -149,8 +147,7 @@ interface PeerTubeHelpers {
   server: {
     getServerActor: () => Promise<ActorModel>
   }
-  // Added in Peertube 3.2.0
-  user?: {
+  user: {
     getAuthUser: (res: express.Response) => Promise<MUserDefault | undefined>
   }
   // Added in Peertube 3.2.0
diff --git a/server/lib/helpers.ts b/server/lib/helpers.ts
index 7e66b321..5a592802 100644
--- a/server/lib/helpers.ts
+++ b/server/lib/helpers.ts
@@ -29,10 +29,8 @@ function getBaseStaticRoute (options: RegisterServerOptions): string {
   return '/plugins/' + pluginShortName + '/' + version + '/static/'
 }
 
-// Peertube <= 3.1.0 has no way to test that current user is admin
-// Peertube >= 3.2.0 has getAuthUser helper
 async function isUserAdmin (options: RegisterServerOptions, res: Response): Promise<boolean> {
-  const user = await getAuthUser(options, res)
+  const user = await options.peertubeHelpers.user.getAuthUser(res)
   if (!user) {
     return false
   }
@@ -45,18 +43,6 @@ async function isUserAdmin (options: RegisterServerOptions, res: Response): Prom
   return true
 }
 
-// Peertube <= 3.1.0 has no way to get user informations.
-// This is a hack.
-// Peertube >= 3.2.0 has getAuthUser helper
-async function getAuthUser (options: RegisterServerOptions, res: Response): Promise<MUserDefault | undefined> {
-  const peertubeHelpers = options.peertubeHelpers
-  if (peertubeHelpers.user?.getAuthUser) {
-    return peertubeHelpers.user.getAuthUser(res)
-  }
-  peertubeHelpers.logger.debug('Peertube does not provide getAuthUser for now, fallback on hack')
-  return res.locals.oauth?.token?.User
-}
-
 async function getUserNickname (options: RegisterServerOptions, user: MUserDefault): Promise<string | undefined> {
   const peertubeHelpers = options.peertubeHelpers
   const logger = peertubeHelpers.logger
@@ -72,7 +58,6 @@ export {
   getBaseRouterRoute,
   getBaseStaticRoute,
   isUserAdmin,
-  getAuthUser,
   getUserNickname,
   pluginName,
   pluginShortName
diff --git a/server/lib/routers/api.ts b/server/lib/routers/api.ts
index 75cb305f..2695418a 100644
--- a/server/lib/routers/api.ts
+++ b/server/lib/routers/api.ts
@@ -3,7 +3,7 @@ import { videoHasWebchat } from '../../../shared/lib/video'
 import { asyncMiddleware } from '../middlewares/async'
 import { getCheckAPIKeyMiddleware } from '../middlewares/apikey'
 import { prosodyCheckUserPassword, prosodyRegisterUser, prosodyUserRegistered } from '../prosody/auth'
-import { getAuthUser, getUserNickname } from '../helpers'
+import { getUserNickname } from '../helpers'
 import { Affiliations, getVideoAffiliations } from '../prosody/config/affiliations'
 import { getProsodyDomain } from '../prosody/config/domain'
 
@@ -92,7 +92,7 @@ async function initApiRouter (options: RegisterServerOptions): Promise<Router> {
 
   router.get('/auth', asyncMiddleware(
     async (req: Request, res: Response, _next: NextFunction) => {
-      const user = await getAuthUser(options, res)
+      const user = await peertubeHelpers.user.getAuthUser(res)
       if (!user) {
         res.sendStatus(403)
         return