diff --git a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm
index 98f7ce17a..f2dfd5050 100644
--- a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm
+++ b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Attributes.pm
@@ -697,7 +697,7 @@ sub attributes {
         },
         'casSrvMetaDataOptionsProxiedServices' => {
             'keyMsgFail' => '__badCasProxyId__',
-            'keyTest'    => qr/^\w+$/,
+            'keyTest'    => qr/^\w/,
             'type'       => 'keyTextContainer'
         },
         'casSrvMetaDataOptionsRenew' => {
diff --git a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm
index 331a50649..e83b06dca 100644
--- a/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm
+++ b/lemonldap-ng-manager/lib/Lemonldap/NG/Manager/Build/Attributes.pm
@@ -2092,7 +2092,7 @@ m{^(?:ldapi://[^/]*/?|\w[\w\-\.]*(?::\d{1,5})?|ldap(?:s|\+tls)?://\w[\w\-\.]*(?:
         casSrvMetaDataOptionsGateway         => { type => 'bool', },
         casSrvMetaDataOptionsProxiedServices => {
             type       => 'keyTextContainer',
-            keyTest    => qr/^\w+$/,
+            keyTest    => qr/^\w/,
             keyMsgFail => '__badCasProxyId__',
         },
         casSrvMetaDataOptionsRenew => { type => 'bool', },