diff --git a/htdocs/bom/class/bom.class.php b/htdocs/bom/class/bom.class.php
index 8ea8e3e3eddc9..b4b1f97741425 100644
--- a/htdocs/bom/class/bom.class.php
+++ b/htdocs/bom/class/bom.class.php
@@ -792,7 +792,7 @@ public function updateLine($rowid, $qty, $qty_frozen = 0, $disable_stock_change
 					$line->array_options[$key] = $array_options[$key];
 				}
 			}
-			if ($fk_default_workstation >= 0 && $line->fk_default_workstation != $fk_default_workstation) {
+			if ($line->fk_default_workstation != $fk_default_workstation) {
 				$line->fk_default_workstation = $fk_default_workstation;
 			}