diff --git a/src/Surfnet/StepupGateway/SecondFactorOnlyBundle/Resources/config/services.yml b/src/Surfnet/StepupGateway/SecondFactorOnlyBundle/Resources/config/services.yml
index f33b56df..8032a44f 100644
--- a/src/Surfnet/StepupGateway/SecondFactorOnlyBundle/Resources/config/services.yml
+++ b/src/Surfnet/StepupGateway/SecondFactorOnlyBundle/Resources/config/services.yml
@@ -169,3 +169,5 @@ services:
     second_factor_only.adfs_service:
         class: Surfnet\StepupGateway\SecondFactorOnlyBundle\Service\Gateway\AdfsService
         arguments:
+            - "@second_factor_only.adfs.request_helper"
+            - "@second_factor_only.adfs.response_helper"