diff --git a/modules/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Simple.pm b/modules/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Simple.pm
index 719041041..20fe84bd2 100644
--- a/modules/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Simple.pm
+++ b/modules/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Simple.pm
@@ -751,6 +751,7 @@ sub error_type {
                 PE_PP_GRACE,     PE_PP_EXP_WARNING,
                 PE_NOTIFICATION, PE_BADURL,
                 PE_CONFIRM,      PE_MAILFORMEMPTY,
+                PE_MAILCONFIRMATION_ALREADY_SENT,
             )
         )
       );