diff --git a/htdocs/mrp/class/mo.class.php b/htdocs/mrp/class/mo.class.php
index 2f364c359fa..e677c64efc0 100644
--- a/htdocs/mrp/class/mo.class.php
+++ b/htdocs/mrp/class/mo.class.php
@@ -558,9 +558,10 @@ class Mo extends CommonObject
 	 * Erase and update the line to produce.
 	 *
 	 * @param  User $user      User that modifies
+	 * @param  bool $notrigger false=launch triggers after, true=disable triggers
 	 * @return int             <0 if KO, >0 if OK
 	 */
-	public function updateProduction(User $user)
+	public function updateProduction(User $user, $notrigger = true)
 	{
 		$error = 0;
 
@@ -592,7 +593,7 @@ class Mo extends CommonObject
 				$moline->role = 'toproduce';
 				$moline->position = 1;
 
-				$resultline = $moline->create($user);
+				$resultline = $moline->create($user, false);	// Never use triggers here
 				if ($resultline <= 0) {
 					$error++;
 					$this->error = $moline->error;
@@ -624,7 +625,7 @@ class Mo extends CommonObject
 							$moline->qty_frozen = $line->qty_frozen;
 							$moline->disable_stock_change = $line->disable_stock_change;
 
-							$resultline = $moline->create($user);
+							$resultline = $moline->create($user, false);	// Never use triggers here
 							if ($resultline <= 0) {
 								$error++;
 								$this->error = $moline->error;