1 files changed, 4 insertions, 1 deletions

diff --git a/server/middlewares/validators/remote/signature.ts b/server/middlewares/validators/remote/signature.ts
index 6e3ebe7db..eb5c196eb 100644
--- a/server/middlewares/validators/remote/signature.ts
+++ b/server/middlewares/validators/remote/signature.ts
@@ -1,7 +1,10 @@
+import 'express-validator'
+import * as express from 'express'
+
 import { logger } from '../../../helpers'
 import { checkErrors } from '../utils'
 
-function signatureValidator (req, res, next) {
+function signatureValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
   req.checkBody('signature.host', 'Should have a signature host').isURL()
   req.checkBody('signature.signature', 'Should have a signature').notEmpty()