diff --git a/addons/web/static/src/js/views/basic/basic_model.js b/addons/web/static/src/js/views/basic/basic_model.js
index 1001ac73857..811e3632975 100644
--- a/addons/web/static/src/js/views/basic/basic_model.js
+++ b/addons/web/static/src/js/views/basic/basic_model.js
@@ -1001,7 +1001,7 @@ var BasicModel = AbstractModel.extend({
      */
     _applyMany2OneChange: function (record, fieldName, data) {
         var self = this;
-        if (!data) {
+        if (!data || data.id === false) {
             record._changes[fieldName] = false;
             return $.when();
         }
diff --git a/addons/web/static/tests/fields/relational_fields_tests.js b/addons/web/static/tests/fields/relational_fields_tests.js
index f179bbc7621..e67faabe220 100644
--- a/addons/web/static/tests/fields/relational_fields_tests.js
+++ b/addons/web/static/tests/fields/relational_fields_tests.js
@@ -5797,6 +5797,35 @@ QUnit.module('relational_fields', {
         form.destroy();
     });
 
+    QUnit.test('unset selection on a many2one field', function (assert) {
+        assert.expect(1);
+
+        var form = createView({
+            View: FormView,
+            model: 'partner',
+            data: this.data,
+            arch: '<form string="Partners">' +
+                        '<field name="trululu" widget="selection"/>' +
+                '</form>',
+            mockRPC: function (route, args) {
+                if (args.method === 'write') {
+                    assert.strictEqual(args.args[1].trululu, false,
+                        "should send 'false' as trululu value");
+                }
+                return this._super.apply(this, arguments);
+            },
+            res_id: 1,
+            viewOptions: {
+                mode: 'edit',
+            },
+        });
+
+        form.$('select').val("false").trigger('change');
+        form.$buttons.find('.o_form_button_save').click();
+
+        form.destroy();
+    });
+
     QUnit.module('FieldMany2ManyTags');
 
     QUnit.test('fieldmany2many tags: rendering and edition', function (assert) {