1 files changed, 5 insertions, 2 deletions

diff --git a/server/middlewares/validators/activitypub/activity.ts b/server/middlewares/validators/activitypub/activity.ts
index 7350be5d5..255d8eb17 100644
--- a/server/middlewares/validators/activitypub/activity.ts
+++ b/server/middlewares/validators/activitypub/activity.ts
@@ -2,20 +2,23 @@ import * as express from 'express'
 import { isRootActivityValid } from '../../../helpers/custom-validators/activitypub/activity'
 import { logger } from '../../../helpers/logger'
 import { getServerActor } from '@server/models/application/application'
+import { HttpStatusCode } from '../../../../shared/core-utils/miscs/http-error-codes'
 
 async function activityPubValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
   logger.debug('Checking activity pub parameters')
 
   if (!isRootActivityValid(req.body)) {
     logger.warn('Incorrect activity parameters.', { activity: req.body })
-    return res.status(400).json({ error: 'Incorrect activity.' })
+    return res.status(HttpStatusCode.BAD_REQUEST_400)
+              .json({ error: 'Incorrect activity.' })
   }
 
   const serverActor = await getServerActor()
   const remoteActor = res.locals.signature.actor
   if (serverActor.id === remoteActor.id) {
     logger.error('Receiving request in INBOX by ourselves!', req.body)
-    return res.status(409).end()
+    return res.status(HttpStatusCode.CONFLICT_409)
+              .end()
   }
 
   return next()