diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index d81dc97bba9..127e12f919e 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -430,7 +430,7 @@ abstract class CommonObject
 	 * @var integer|string $date_validation;
 	 */
 	public $date_validation;		// Date validation
-	
+
 	/**
 	 * @var integer|string $date_modification;
 	 */