diff --git a/addons/stock/static/src/js/widgets.js b/addons/stock/static/src/js/widgets.js
index 18af2d8f974..d38a5b16cfa 100644
--- a/addons/stock/static/src/js/widgets.js
+++ b/addons/stock/static/src/js/widgets.js
@@ -878,7 +878,8 @@ function openerp_picking_widgets(instance){
             if (pack_op_ids.length !== 0){
                 return new instance.web.Model('stock.picking')
                     .call('action_pack',[[[self.picking.id]], pack_op_ids])
-                    .then(function(){
+                    .then(function(pack){
+                        //TODO: the functionality using current_package_id in context is not needed anymore
                         instance.session.user_context.current_package_id = false;
                         return self.refresh_ui(self.picking.id);
                     });
diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index 823d8249a8c..9e57c04b7e0 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -1450,6 +1450,7 @@ class stock_picking(osv.osv):
         stock_operation_obj = self.pool.get('stock.pack.operation')
         package_obj = self.pool.get('stock.quant.package')
         stock_move_obj = self.pool.get('stock.move')
+        package_id = False
         for picking_id in picking_ids:
             operation_search_domain = [('picking_id', '=', picking_id), ('result_package_id', '=', False)]
             if operation_filter_ids != []:
@@ -1469,7 +1470,7 @@ class stock_picking(osv.osv):
                         stock_move_obj.check_tracking_product(cr, uid, op.product_id, op.lot_id.id, op.location_id, op.location_dest_id, context=context)
                 package_id = package_obj.create(cr, uid, {}, context=context)
                 stock_operation_obj.write(cr, uid, pack_operation_ids, {'result_package_id': package_id}, context=context)
-        return True
+        return package_id
 
     def process_product_id_from_ui(self, cr, uid, picking_id, product_id, op_id, increment=True, context=None):
         return self.pool.get('stock.pack.operation')._search_and_increment(cr, uid, picking_id, [('product_id', '=', product_id),('id', '=', op_id)], increment=increment, context=context)