diff --git a/htdocs/mrp/class/mo.class.php b/htdocs/mrp/class/mo.class.php
index 76bbe7ef26f..570281ac294 100644
--- a/htdocs/mrp/class/mo.class.php
+++ b/htdocs/mrp/class/mo.class.php
@@ -1,6 +1,7 @@
 <?php
 /* Copyright (C) 2017  Laurent Destailleur <eldy@users.sourceforge.net>
  * Copyright (C) 2020  Lenin Rivas		   <lenin@leninrivas.com>
+ * Copyright (C) ---Put here your own copyright and developer email---
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -648,7 +649,7 @@ class Mo extends CommonObject
 							if ($line->qty_frozen) {
 								$moline->qty = $line->qty; // Qty to consume does not depends on quantity to produce
 							} else {
-								$moline->qty = round($line->qty * ($this->qty / $bom->qty) / $line->efficiency, 4); // Calculate with Qty to produce and  more presition
+								$moline->qty = round($line->qty * ($this->qty / $bom->qty) / $line->efficiency, 8); // Calculate with Qty to produce and  more presition
 							}
 							if ($moline->qty <= 0) {
 								$error++;