diff --git a/htdocs/product/stock/class/productlot.class.php b/htdocs/product/stock/class/productlot.class.php
index 7cf0c966a23..c46bb4ffa78 100644
--- a/htdocs/product/stock/class/productlot.class.php
+++ b/htdocs/product/stock/class/productlot.class.php
@@ -156,6 +156,7 @@ class Productlot extends CommonObject
 		if (!$error) {
 			$this->id = $this->db->last_insert_id(MAIN_DB_PREFIX . $this->table_element);
 
+			$action='create';
 			// Actions on extra fields (by external module or standard code)
 			$hookmanager->initHooks(array('productlotdao'));
 			$parameters=array('id'=>$this->id);
@@ -330,6 +331,24 @@ class Productlot extends CommonObject
 			dol_syslog(__METHOD__ . ' ' . join(',', $this->errors), LOG_ERR);
 		}
 
+		$action='update';
+		// Actions on extra fields (by external module or standard code)
+		$hookmanager->initHooks(array('productlotdao'));
+		$parameters=array('id'=>$this->id);
+		$reshook=$hookmanager->executeHooks('insertExtraFields',$parameters,$this,$action);    // Note that $action and $object may have been modified by some hooks
+		if (empty($reshook))
+		{
+			if (empty($conf->global->MAIN_EXTRAFIELDS_DISABLED)) // For avoid conflicts if trigger used
+			{
+				$result=$this->insertExtraFields();
+				if ($result < 0)
+				{
+					$error++;
+				}
+			}
+		}
+		else if ($reshook < 0) $error++;
+		
 		if (!$error && !$notrigger) {
 			// Uncomment this and change MYOBJECT to your own tag if you
 			// want this action calls a trigger.