diff --git a/core/src/main/scala/org/thp/scalligraph/auth/MultiAuthSrv.scala b/core/src/main/scala/org/thp/scalligraph/auth/MultiAuthSrv.scala
index e47503ec..14dc21bf 100644
--- a/core/src/main/scala/org/thp/scalligraph/auth/MultiAuthSrv.scala
+++ b/core/src/main/scala/org/thp/scalligraph/auth/MultiAuthSrv.scala
@@ -60,10 +60,10 @@ class MultiAuthSrv(configuration: Configuration, appConfig: ApplicationConfig, a
         success => Right(success)
       )
     }.fold({
-      case Seq() => Seq(("", AuthorizationError("no authentication provider found")))
-      case otherwise => otherwise
+      case Seq() => Left(Seq(("", AuthorizationError("no authentication provider found"))))
+      case otherwise => Left(otherwise)
     },
-      a => a
+      a => Right(a)
     )
 
     either match {