diff --git a/app/Helpers/custom.php b/app/Helpers/custom.php
index d12b396..63d103f 100644
--- a/app/Helpers/custom.php
+++ b/app/Helpers/custom.php
@@ -1758,7 +1758,7 @@ if (!function_exists('formKriteria')) {
                 ->where('key','upload_files_penilai')
                 ->first();
                 $valueFile = json_decode(@$checkFile->value);
-                $extension = explode('.',@$valueFile->value);
+                $extension = explode('.',@$valueFile);
 
                 $html .= '<div class="card bg-secondary mb-2 removeFormKriteria">';
                     $html .= '<input type="hidden" name="key" value="'.encode_id($page_number).'">';