diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Display.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Display.pm
index 46e6fc5ad..8dd4660ee 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Display.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Main/Display.pm
@@ -485,7 +485,7 @@ sub mkSessionArray {
 sub mkOidcConsent {
     my ( $self, $session ) = @_;
 
-    if ( $self->conf->{oidcRPMetaDataOptions} ) {
+    if ( defined( $self->conf->{oidcRPMetaDataOptions} ) ) {
         foreach my $oidc ( keys %{ $self->conf->{oidcRPMetaDataOptions} } ) {
             $self->conf->{oidcRPMetaDataOptions}->{$oidc}
               ->{oidcRPMetaDataOptionsDisplayName} ||= $oidc;