diff --git a/addons/sale_layout/sale_layout.py b/addons/sale_layout/sale_layout.py
index ef63ad596ac..a7017a78c87 100644
--- a/addons/sale_layout/sale_layout.py
+++ b/addons/sale_layout/sale_layout.py
@@ -161,4 +161,15 @@ class sale_order(osv.osv):
 
 sale_order()
 
+class stock_picking(osv.osv):
+    _inherit = "stock.picking"
+
+    def _prepare_invoice_line(self, cr, uid, group, picking, move_line, invoice_id, invoice_vals, context=None):
+        vals = super(stock_picking, self).__prepare_invoice_line(cr, uid, group, picking, move_line, invoice_id, invoice_vals, context)
+
+        if "sequence" in self.pool.get("account.invoice.line")._all_columns and move_line.sale_line_id:
+            vals['sequence'] == move_line.sale_line_id.sequence
+
+        return vals
+
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: