diff --git a/addons/stock/static/src/js/widgets.js b/addons/stock/static/src/js/widgets.js
index 6bebc8a0fa1..5800a9533de 100644
--- a/addons/stock/static/src/js/widgets.js
+++ b/addons/stock/static/src/js/widgets.js
@@ -841,7 +841,7 @@ function openerp_picking_widgets(instance){
         scan: function(ean){ //scans a barcode, sends it to the server, then reload the ui
             var self = this;
             var product_visible_ids = this.picking_editor.get_visible_ids();
-            new instance.web.Model('stock.picking')
+            return new instance.web.Model('stock.picking')
                 .call('process_barcode_from_ui', [self.picking.id, ean, product_visible_ids])
                 .then(function(result){
                     if (result.filter_loc !== false){
@@ -866,7 +866,7 @@ function openerp_picking_widgets(instance){
         },
         scan_product_id: function(product_id,increment,op_id){ //performs the same operation as a scan, but with product id instead
             var self = this;
-            new instance.web.Model('stock.picking')
+            return new instance.web.Model('stock.picking')
                 .call('process_product_id_from_ui', [self.picking.id, product_id, op_id, increment])
                 .then(function(result){
                     return self.refresh_ui(self.picking.id);
@@ -876,7 +876,7 @@ function openerp_picking_widgets(instance){
             var self = this;
             var pack_op_ids = self.picking_editor.get_current_op_selection(false);
             if (pack_op_ids.length !== 0){
-                new instance.web.Model('stock.picking')
+                return new instance.web.Model('stock.picking')
                     .call('action_pack',[[[self.picking.id]], pack_op_ids])
                     .then(function(){
                         instance.session.user_context.current_package_id = false;
@@ -888,7 +888,7 @@ function openerp_picking_widgets(instance){
             var self = this;
             var pack_op_ids = self.picking_editor.get_current_op_selection(true);
             if (pack_op_ids.length !== 0){
-                new instance.web.Model('stock.pack.operation')
+                return new instance.web.Model('stock.pack.operation')
                     .call('action_drop_down', [pack_op_ids])
                     .then(function(){
                             return self.refresh_ui(self.picking.id).then(function(){
@@ -901,7 +901,7 @@ function openerp_picking_widgets(instance){
         },
         done: function(){
             var self = this;
-            new instance.web.Model('stock.picking')
+            return new instance.web.Model('stock.picking')
                 .call('action_done_from_ui',[self.picking.id, {'default_picking_type_id': self.picking_type_id}])
                 .then(function(new_picking_ids){
                     if (new_picking_ids){
@@ -914,7 +914,7 @@ function openerp_picking_widgets(instance){
         },
         create_lot: function(op_id, lot_name){
             var self = this;
-            new instance.web.Model('stock.pack.operation')
+            return new instance.web.Model('stock.pack.operation')
                 .call('create_and_assign_lot',[parseInt(op_id), lot_name])
                 .then(function(){
                     return self.refresh_ui(self.picking.id);
@@ -926,7 +926,7 @@ function openerp_picking_widgets(instance){
             if (is_src_dst){
                 vals = {'location_id': loc_id};
             }
-            new instance.web.Model('stock.pack.operation')
+            return new instance.web.Model('stock.pack.operation')
                 .call('write',[op_id, vals])
                 .then(function(){
                     return self.refresh_ui(self.picking.id);
@@ -934,7 +934,7 @@ function openerp_picking_widgets(instance){
         },
         print_package: function(package_id){
             var self = this;
-            new instance.web.Model('stock.quant.package')
+            return new instance.web.Model('stock.quant.package')
                 .call('action_print',[[package_id]])
                 .then(function(action){
                     return self.do_action(action);
@@ -942,9 +942,9 @@ function openerp_picking_widgets(instance){
         },
         print_picking: function(){
             var self = this;
-            new instance.web.Model('stock.picking.type').call('read', [[self.picking_type_id], ['code'], new instance.web.CompoundContext()])
+            return new instance.web.Model('stock.picking.type').call('read', [[self.picking_type_id], ['code'], new instance.web.CompoundContext()])
                 .then(function(pick_type){
-                    new instance.web.Model('stock.picking').call('do_print_picking',[[self.picking.id]])
+                    return new instance.web.Model('stock.picking').call('do_print_picking',[[self.picking.id]])
                            .then(function(action){
                                 return self.do_action(action);
                            });
@@ -974,9 +974,9 @@ function openerp_picking_widgets(instance){
         },
         delete_package_op: function(pack_id){
             var self = this;
-            new instance.web.Model('stock.pack.operation').call('search', [[['result_package_id', '=', pack_id]]])
+            return new instance.web.Model('stock.pack.operation').call('search', [[['result_package_id', '=', pack_id]]])
                 .then(function(op_ids) {
-                    new instance.web.Model('stock.pack.operation').call('write', [op_ids, {'result_package_id':false}])
+                    return new instance.web.Model('stock.pack.operation').call('write', [op_ids, {'result_package_id':false}])
                         .then(function() {
                             return self.refresh_ui(self.picking.id);
                         });
@@ -985,7 +985,7 @@ function openerp_picking_widgets(instance){
         set_operation_quantity: function(quantity, op_id){
             var self = this;
             if(quantity >= 0){
-                new instance.web.Model('stock.pack.operation')
+                return new instance.web.Model('stock.pack.operation')
                     .call('write',[[op_id],{'qty_done': quantity }])
                     .then(function(){
                         self.refresh_ui(self.picking.id);
@@ -995,13 +995,13 @@ function openerp_picking_widgets(instance){
         },
         set_package_pack: function(package_id, pack){
             var self = this;
-                new instance.web.Model('stock.quant.package')
+                return new instance.web.Model('stock.quant.package')
                     .call('write',[[package_id],{'ul_id': pack }]);
             return;
         },
         reload_pack_operation: function(){
             var self = this;
-            new instance.web.Model('stock.picking')
+            return new instance.web.Model('stock.picking')
                 .call('do_prepare_partial',[[self.picking.id]])
                 .then(function(){
                     self.refresh_ui(self.picking.id);