diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index 6bb2d471291..4b9b28409fd 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -371,6 +371,8 @@ class stock_quant(osv.osv):
         domain += [('product_id','=',product.id)] + domain
         res = []
         offset = 0
+        #id is added at the end of the order to make sure the order is always the same for quants created at the same second
+        orderby += ', id'
         while quantity > 0:
             quants = self.search(cr, uid, domain, order=orderby, limit=10, offset=offset, context=context)
             if not quants: