diff --git a/rest/index.php b/rest/index.php
index 50d89efec8246ba9d55716b0451457d2a99a5c79..2a70da8a1019f9a6b0e79c1c0c33320baa7c0b2e 100755
--- a/rest/index.php
+++ b/rest/index.php
@@ -219,7 +219,7 @@ $app->put('/groups/{id}/indexing', \Group\controllers\GroupController::class . '
 $app->put('/groups/{id}/reassign/{newGroupId}', \Group\controllers\GroupController::class . ':reassignUsers');
 $app->post('/groups/{id}/privileges/{privilegeId}', \Group\controllers\PrivilegeController::class . ':addPrivilege');
 $app->delete('/groups/{id}/privileges/{privilegeId}', \Group\controllers\PrivilegeController::class . ':removePrivilege');
-$app->put('/groups/{id}/privileges/{privilegeId}/parameters', \Group\controllers\PrivilegeController::class . ':updatePrivilegeParameters');
+$app->put('/groups/{id}/privileges/{privilegeId}/parameters', \Group\controllers\PrivilegeController::class . ':updateParameters');
 
 //Histories
 $app->get('/histories', \History\controllers\HistoryController::class . ':get');
diff --git a/src/app/group/controllers/PrivilegeController.php b/src/app/group/controllers/PrivilegeController.php
index a7f2654f8a69699156a7e48afac807ff3db3db79..ad2028551258d41b45e4ed7a438b82f041751999 100644
--- a/src/app/group/controllers/PrivilegeController.php
+++ b/src/app/group/controllers/PrivilegeController.php
@@ -86,7 +86,7 @@ class PrivilegeController
         return $response->withStatus(204);
     }
 
-    public static function updatePrivilegeParameters(Request $request, Response $response, array $args)
+    public static function updateParameters(Request $request, Response $response, array $args)
     {
         if (!PrivilegeController::hasPrivilege(['privilegeId' => 'admin_groups', 'userId' => $GLOBALS['id']])) {
             return $response->withStatus(403)->withJson(['errors' => 'Service forbidden']);
@@ -97,10 +97,6 @@ class PrivilegeController
             return $response->withStatus(400)->withJson(['errors' => 'Group not found']);
         }
 
-        if (!Validator::stringType()->notEmpty()->validate($args['privilegeId'])) {
-            return $response->withStatus(400)->withJson(['errors' => 'Query privilegeId is empty or not a string']);
-        }
-
         $data = $request->getParams();
 
         if (!Validator::arrayType()->validate($data['parameters'])) {
@@ -202,7 +198,7 @@ class PrivilegeController
         $privileges = PrivilegeModel::getByUserAndPrivilege(['userId' => $args['userId'], 'privilegeId' => 'admin_users']);
         $privileges = array_column($privileges, 'parameters');
 
-        if ($privileges == null) {
+        if (empty($privileges)) {
             return false;
         }
         $assignable = [];
diff --git a/src/app/resource/controllers/ExportController.php b/src/app/resource/controllers/ExportController.php
index be2a5a9ad7f09dfdf48fbe2b14c6da9b2f414997..d94c0f6c854f3a576273a2cf3e85365190845ac1 100644
--- a/src/app/resource/controllers/ExportController.php
+++ b/src/app/resource/controllers/ExportController.php
@@ -819,7 +819,8 @@ class ExportController
         return implode("\n", $parentLabels);
     }
 
-    private static function getCustomFieldValue(array $args) {
+    private static function getCustomFieldValue(array $args)
+    {
         ValidatorModel::notEmpty($args, ['custom', 'resId']);
         ValidatorModel::stringType($args, ['custom']);
         ValidatorModel::intVal($args, ['resId']);