diff --git a/ci4/app/Controllers/Catalogo/CatalogoLibros.php b/ci4/app/Controllers/Catalogo/CatalogoLibros.php
index 4e5bbb2a..e34d0c91 100644
--- a/ci4/app/Controllers/Catalogo/CatalogoLibros.php
+++ b/ci4/app/Controllers/Catalogo/CatalogoLibros.php
@@ -48,7 +48,6 @@ class CatalogoLibros extends BaseResourceController
             'pageSubTitle' => lang('Basic.global.ManageAllRecords', [lang('Catalogo.catalogo')]),
             'catalogoLibrosEntity' => new CatalogoLibroEntity(),
             'usingServerSideDataTable' => true,
-
         ];
 
         $viewData = array_merge($this->viewData, $viewData); // merge any possible values from the parent controller class
@@ -67,7 +66,7 @@ class CatalogoLibros extends BaseResourceController
             $sanitizedData = $this->sanitized($postData, true);
 
             $sanitizedData['user_created_id'] = auth()->user()->id;
-            unset($sanitizedData['isk']);            
+            unset($sanitizedData['iskn']);            
 
             $noException = true;
             if ($successfulResult = $this->canValidate()):
@@ -132,7 +131,7 @@ class CatalogoLibros extends BaseResourceController
 
             $postData = $this->request->getPost();
             $sanitizedData = $this->sanitized($postData, true);
-            unset($sanitizedData['isk']);
+            unset($sanitizedData['iskn']);
             $sanitizedData['user_update_id'] = auth()->user()->id;
 
             $noException = true;