diff --git a/addons/mrp/stock.py b/addons/mrp/stock.py
index 6de1a2f542e..12080dd6a8f 100644
--- a/addons/mrp/stock.py
+++ b/addons/mrp/stock.py
@@ -31,7 +31,7 @@ class StockMove(osv.osv):
     _inherit = 'stock.move'
 
     _columns = {
-        'production_id': fields.many2one('mrp.production', 'Production Order for Produced Products', select=True),
+        'production_id': fields.many2one('mrp.production', 'Production Order for Produced Products', select=True, copy=False),
         'raw_material_production_id': fields.many2one('mrp.production', 'Production Order for Raw Materials', select=True),
         'consumed_for': fields.many2one('stock.move', 'Consumed for', help='Technical field used to make the traceability of produced products'),
     }
@@ -192,6 +192,8 @@ class StockMove(osv.osv):
             quantity_rest_uom = move.product_uom_qty - self.pool.get("product.uom")._compute_qty_obj(cr, uid, move.product_id.uom_id, product_qty, move.product_uom)
             if float_compare(quantity_rest_uom, 0, precision_rounding=move.product_uom.rounding) != 0:
                 new_mov = self.split(cr, uid, move, quantity_rest, context=context)
+                if move.production_id:
+                    self.write(cr, uid, [new_mov], {'production_id': move.production_id.id}, context=context)
                 res.append(new_mov)
             vals = {'restrict_lot_id': restrict_lot_id,
                     'restrict_partner_id': restrict_partner_id,
@@ -223,9 +225,9 @@ class StockMove(osv.osv):
             production_ids = production_obj.search(cr, uid, [('move_lines', 'in', [move.id])])
             for prod_id in production_ids:
                 production_obj.signal_workflow(cr, uid, [prod_id], 'button_produce')
-            for new_move in new_moves:
-                production_obj.write(cr, uid, production_ids, {'move_lines': [(4, new_move)]})
-                res.append(new_move)
+            if move.production_id.id:
+                self.write(cr, uid, new_moves, {'production_id': move.production_id.id}, context=context)
+            res.append(new_moves)
         return res
 
     def write(self, cr, uid, ids, vals, context=None):