diff --git a/app/controllers/auth/Oauth2.controller.js b/app/controllers/auth/Oauth2.controller.js
index 71056f5..3b85233 100644
--- a/app/controllers/auth/Oauth2.controller.js
+++ b/app/controllers/auth/Oauth2.controller.js
@@ -44,7 +44,7 @@ class Oauth2 extends Oauth2Controller {
     async authorize_get(req, res, next) {
         const client = await this._get_authorize_client(req)
         if ( !client ) return this._uniform(res, req.T('auth.unable_to_authorize'))
-        const uri = new URL(req.query.redirect_uri)
+        const uri = new URL(Array.isArray(req.query.redirect_uri) ? req.query.redirect_uri[0] : req.query.redirect_uri)
 
         const StarshipClient = this.models.get('oauth:Client')
         const starship_client = await StarshipClient.findOne({ active: true, uuid: client.clientID })