diff --git a/src/QUI/ERP/Accounting/Article.php b/src/QUI/ERP/Accounting/Article.php
index da134f06cd7b3c8082adf999bad6d6fa9aeb5259..c2f0205e1e53f7cf92758625b700071fcb01696d 100644
--- a/src/QUI/ERP/Accounting/Article.php
+++ b/src/QUI/ERP/Accounting/Article.php
@@ -562,7 +562,7 @@ public function getQuantityUnit($Locale = null): string
             if (isset($options['entries'][$unitId])) {
                 $titles = $options['entries'][$unitId]['title'];
 
-                if ($titles[$current]) {
+                if (!empty($titles[$current])) {
                     return $titles[$current];
                 }
             }