diff --git a/htdocs/product/stock/class/mouvementstock.class.php b/htdocs/product/stock/class/mouvementstock.class.php
index 7991477e146..98103af8ccf 100644
--- a/htdocs/product/stock/class/mouvementstock.class.php
+++ b/htdocs/product/stock/class/mouvementstock.class.php
@@ -322,8 +322,8 @@ class MouvementStock extends CommonObject
     		    if (! $foundforbatch || $qtyisnotenough)
     		    {
     		        $langs->load("stocks");
-        		    $this->error = $langs->trans('qtyToTranferLotIsNotEnough');
-        		    $this->errors[] = $langs->trans('qtyToTranferLotIsNotEnough');
+    		        $this->error = $langs->trans('qtyToTranferLotIsNotEnough').' : '.$product->ref;
+    		        $this->errors[] = $langs->trans('qtyToTranferLotIsNotEnough').' : '.$product->ref;
         		    $this->db->rollback();
         		    return -8;
     		    }
@@ -333,8 +333,8 @@ class MouvementStock extends CommonObject
     		    if (empty($product->stock_warehouse[$entrepot_id]->real) || $product->stock_warehouse[$entrepot_id]->real < abs($qty))
     		    {
     		        $langs->load("stocks");
-    		        $this->error = $langs->trans('qtyToTranferIsNotEnough');
-    		        $this->errors[] = $langs->trans('qtyToTranferIsNotEnough');
+    		        $this->error = $langs->trans('qtyToTranferIsNotEnough').' : '.$product->ref;
+    		        $this->errors[] = $langs->trans('qtyToTranferIsNotEnough').' : '.$product->ref;
     		        $this->db->rollback();
     		        return -8;
     		    }