diff --git a/addons/board/static/src/js/board_view.js b/addons/board/static/src/js/board_view.js
index 1cf27c79fe8..946cdff859f 100644
--- a/addons/board/static/src/js/board_view.js
+++ b/addons/board/static/src/js/board_view.js
@@ -247,10 +247,14 @@ var BoardRenderer = FormRenderer.extend({
                     // the action does not exist anymore
                     return $.when();
                 }
+                var evalContext = new Context(params.context).eval();
+                if (evalContext.group_by && evalContext.group_by.length === 0) {
+                    delete evalContext.group_by;
+                }
                 // tz and lang are saved in the custom view
-                // override the language to take the current one
-                var rawContext = new Context(params.context, action.context, {lang: session.user_context.lang});
-                var context = pyUtils.eval('context', rawContext);
+                // override the https://github.com/odoo/odoo/pull/28408language to take the current one
+                var rawContext = new Context(action.context, evalContext, {lang: session.user_context.lang});
+                var context = pyUtils.eval('context', rawContext, evalContext);
                 var domain = params.domain || pyUtils.eval('domain', action.domain || '[]', action.context);
                 var viewType = params.viewType || action.views[0][1];
                 var view = _.find(action.views, function (descr) {
@@ -332,7 +336,7 @@ var BoardRenderer = FormRenderer.extend({
             self.defs.push(self._createController({
                 $node: $html.find('.oe_action[data-id=' + action.id + '] .oe_content'),
                 actionID: _.str.toNumber(action.name),
-                context: new Context(action.context),
+                context: action.context,
                 domain: Domain.prototype.stringToArray(action.domain, {}),
                 viewType: action.view_mode,
             }));
diff --git a/addons/board/static/tests/dashboard_tests.js b/addons/board/static/tests/dashboard_tests.js
index 42fb870458f..1e17ca71db1 100644
--- a/addons/board/static/tests/dashboard_tests.js
+++ b/addons/board/static/tests/dashboard_tests.js
@@ -24,6 +24,7 @@ QUnit.module('Dashboard', {
                 fields: {
                     display_name: {string: "Displayed name", type: "char", searchable: true},
                     foo: {string: "Foo", type: "char", default: "My little Foo Value", searchable: true},
+                    bar: {string: "Bar", type: "boolean"},
                 },
                 records: [{
                     id: 1,
@@ -787,4 +788,41 @@ QUnit.test("Views should be loaded in the user's language", function (assert) {
     form.destroy();
 });
 
+QUnit.test("Dashboard should use correct groupby", function (assert) {
+    assert.expect(1);
+    var form = createView({
+        View: BoardView,
+        model: 'board',
+        data: this.data,
+        arch: '<form string="My Dashboard">' +
+                '<board style="2-1">' +
+                    '<column>' +
+                        '<action context="{\'group_by\': [\'bar\']}" string="ABC" name="51"></action>' +
+                    '</column>' +
+                '</board>' +
+            '</form>',
+        mockRPC: function (route, args) {
+            if (args.method === 'read_group') {
+                assert.deepEqual(args.kwargs.groupby, ['bar'],
+                    'user defined groupby should have precedence on action groupby');
+            }
+            if (route === '/web/action/load') {
+                return $.when({
+                    res_model: 'partner',
+                    context: {
+                        group_by: 'some_field',
+                    },
+                    views: [[4, 'list']],
+                });
+            }
+            return this._super.apply(this, arguments);
+        },
+        archs: {
+            'partner,4,list':
+                '<list string="Partner"><field name="foo"/></list>',
+        },
+    });
+
+    form.destroy();
+});
 });