diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 3c23ba0f8ac94..c7335298bdd55 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -4514,7 +4514,7 @@ function fetch_optionals($rowid=null, $optionsArray=null)
 			{
 				$extrafields->fetch_name_optionals_label($this->table_element);
 			}
-			$optionsArray = $extrafields->attributes[$this->table_element]['label'];
+			$optionsArray = (! empty($extrafields->attributes[$this->table_element]['label'])?$extrafields->attributes[$this->table_element]['label']:null);
 		}
 		else
 		{