diff --git a/app/controllers/api/projects.php b/app/controllers/api/projects.php
index 0c5ec39d93..062e300fd1 100644
--- a/app/controllers/api/projects.php
+++ b/app/controllers/api/projects.php
@@ -1749,7 +1749,7 @@ App::get('/v1/projects/:projectId/templates/sms/:type/:locale')
     ->label('sdk.response.model', Response::MODEL_SMS_TEMPLATE)
     ->param('projectId', '', new UID(), 'Project unique ID.')
     ->param('type', '', new WhiteList(Config::getParam('locale-templates')['sms'] ?? []), 'Template type')
-    ->param('locale', '', new Text(6), 'Template locale')
+    ->param('locale', '', fn($localeCodes) => new WhiteList($localeCodes), 'Template locale', false, ['localeCodes'])
     ->inject('response')
     ->inject('dbForConsole')
     ->action(function (string $projectId, string $type, string $locale, Response $response, Database $dbForConsole) {
@@ -1787,7 +1787,7 @@ App::get('/v1/projects/:projectId/templates/email/:type/:locale')
     ->label('sdk.response.model', Response::MODEL_EMAIL_TEMPLATE)
     ->param('projectId', '', new UID(), 'Project unique ID.')
     ->param('type', '', new WhiteList(Config::getParam('locale-templates')['email'] ?? []), 'Template type')
-    ->param('locale', '', new Text(6), 'Template locale')
+    ->param('locale', '', fn($localeCodes) => new WhiteList($localeCodes), 'Template locale', false, ['localeCodes'])
     ->inject('response')
     ->inject('dbForConsole')
     ->action(function (string $projectId, string $type, string $locale, Response $response, Database $dbForConsole) {