diff --git a/addons/barcodes/static/src/js/barcode_form_view.js b/addons/barcodes/static/src/js/barcode_form_view.js
index 1730b42290e..b5cad7a1509 100644
--- a/addons/barcodes/static/src/js/barcode_form_view.js
+++ b/addons/barcodes/static/src/js/barcode_form_view.js
@@ -146,10 +146,10 @@ FormController.include({
      * @param {Object} activeBarcode: options sent by the field who use barcode features
      * @returns {Deferred}
      */
-    _barcodeSelectedCandidate: function (candidate, record, barcode, activeBarcode) {
+    _barcodeSelectedCandidate: function (candidate, record, barcode, activeBarcode, quantity) {
         var changes = {};
         var candidateChanges = {};
-        candidateChanges[activeBarcode.quantity] = candidate.data[activeBarcode.quantity] + 1;
+        candidateChanges[activeBarcode.quantity] = quantity ? quantity : candidate.data[activeBarcode.quantity] + 1;
         changes[activeBarcode.fieldName] = {
             operation: 'UPDATE',
             id: candidate.id,
@@ -306,6 +306,8 @@ FormController.include({
             }
             return self.alive($.when.apply($, defs)).then(function () {
                 if (!prefixed) {
+                    // remember the barcode scanned for the quantity listener
+                    self.current_barcode = barcode;
                     // redraw the view if we scanned a real barcode (required if
                     // we manually apply the change in JS, e.g. incrementing the
                     // quantity)
@@ -355,9 +357,10 @@ FormController.include({
             title: _t('Set quantity'),
             buttons: [{text: _t('Select'), classes: 'btn-primary', close: true, click: function () {
                 var new_qty = this.$content.find('.o_set_qty_input').val();
-                var values = {};
-                values[activeBarcode.quantity] = parseFloat(new_qty);
-                return self.model.notifyChanges(activeBarcode.candidate.id, values).then(function () {
+                var record = self.model.get(self.handle);
+                return self._barcodeSelectedCandidate(activeBarcode.candidate, record,
+                        self.current_barcode, activeBarcode, parseFloat(new_qty))
+                .then(function () {
                     self.update({}, {reload: false});
                 });
             }}, {text: _t('Discard'), close: true}],
diff --git a/addons/barcodes/static/tests/barcode_tests.js b/addons/barcodes/static/tests/barcode_tests.js
index cf77497a2a7..783a5875e98 100644
--- a/addons/barcodes/static/tests/barcode_tests.js
+++ b/addons/barcodes/static/tests/barcode_tests.js
@@ -404,4 +404,82 @@ QUnit.test('specification of widget barcode_handler', function (assert) {
     barcodeEvents.BarcodeEvents.max_time_between_keys_in_ms = delay;
     delete fieldRegistry.map.test_barcode_handler;
 });
+
+QUnit.test('specification of widget barcode_handler with keypress and notifyChange', function (assert) {
+    assert.expect(6);
+    var done = assert.async();
+
+    var delay = barcodeEvents.BarcodeEvents.max_time_between_keys_in_ms;
+    barcodeEvents.BarcodeEvents.max_time_between_keys_in_ms = 0;
+
+    this.data.order.onchanges = {
+        _barcode_scanned: function () {},
+    };
+
+    // Define a specific barcode_handler widget for this test case
+    var TestBarcodeHandler = AbstractField.extend({
+        init: function () {
+            this._super.apply(this, arguments);
+
+            this.trigger_up('activeBarcode', {
+                name: 'test',
+                fieldName: 'line_ids',
+                notifyChange: false,
+                setQuantityWithKeypress: true,
+                quantity: 'quantity',
+                commands: {
+                    barcode: '_barcodeAddX2MQuantity',
+                }
+            });
+        },
+    });
+    fieldRegistry.add('test_barcode_handler', TestBarcodeHandler);
+
+    var form = createView({
+        View: FormView,
+        model: 'order',
+        data: this.data,
+        arch: '<form>' +
+                    '<field name="_barcode_scanned" widget="test_barcode_handler"/>' +
+                    '<field name="line_ids">' +
+                        '<tree>' +
+                            '<field name="product_id"/>' +
+                            '<field name="product_barcode" invisible="1"/>' +
+                            '<field name="quantity"/>' +
+                        '</tree>' +
+                    '</field>' +
+                '</form>',
+        mockRPC: function (route, args) {
+            assert.step(args.method);
+            return this._super.apply(this, arguments);
+        },
+        res_id: 1,
+        viewOptions: {
+            mode: 'edit',
+        },
+    });
+    _.each(['1','2','3','4','5','6','7','8','9','0','Enter'], triggerKeypressEvent);
+         // Quantity listener should open a dialog.
+    triggerKeypressEvent('5');
+
+    setTimeout(function () {
+        var keycode = $.ui.keyCode.ENTER;
+
+        assert.strictEqual($('.modal .modal-body').length, 1, 'should open a modal with a quantity as input');
+        assert.strictEqual($('.modal .modal-body .o_set_qty_input').val(), '5', 'the quantity by default in the modal shoud be 5');
+
+        $('.modal .modal-body .o_set_qty_input').val('7');
+
+        $('.modal .modal-body .o_set_qty_input').trigger($.Event('keypress', {which: keycode, keyCode: keycode}));
+        assert.strictEqual(form.$('.o_data_row .o_data_cell:nth(1)').text(), '7',
+        "quantity checked should be 7");
+
+        assert.verifySteps(['read', 'read']);
+
+        form.destroy();
+        barcodeEvents.BarcodeEvents.max_time_between_keys_in_ms = delay;
+        delete fieldRegistry.map.test_barcode_handler;
+        done();
+    });
+});
 });