diff --git a/app/Jobs/Document/UpdateDocument.php b/app/Jobs/Document/UpdateDocument.php
index 2443d8dbb..efdc27385 100644
--- a/app/Jobs/Document/UpdateDocument.php
+++ b/app/Jobs/Document/UpdateDocument.php
@@ -23,9 +23,7 @@ class UpdateDocument extends Job implements ShouldUpdate
         }
 
         // Disable this lines for global discount issue fixed ( https://github.com/akaunting/akaunting/issues/2797 )
-        if (! empty($this->request['discount'])) {
-            $this->request['discount_rate'] = $this->request['discount'];
-        }
+        $this->request['discount_rate'] = $this->request['discount'] ?? null;
 
         event(new DocumentUpdating($this->model, $this->request));