diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Issuer.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Issuer.pm
index 724db13b4..442904c5d 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Issuer.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Issuer.pm
@@ -14,6 +14,7 @@ use IO::String;
 use Lemonldap::NG::Portal::Main::Constants qw(
   PE_OK
   PE_RENEWSESSION
+  PE_SENDRESPONSE
 );
 
 extends 'Lemonldap::NG::Portal::Main::Plugin';