diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 40d220ac717..6656141593c 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -1218,7 +1218,7 @@ class Facture extends CommonInvoice
 					$object->lines[$i]->date_end = $newLast;
 				}
 			}
-			
+
 			$object->lines[$i]->ref_ext = '';	// Do not clone ref_ext
 		}