diff --git a/addons/web/static/src/js/views/sample_server.js b/addons/web/static/src/js/views/sample_server.js
index 7d4cf4f26ff..cebd4a2039e 100644
--- a/addons/web/static/src/js/views/sample_server.js
+++ b/addons/web/static/src/js/views/sample_server.js
@@ -250,6 +250,9 @@
                     if (field.relation === 'res.currency') {
                         return session.company_currency_id;
                     }
+                    if (field.relation === 'ir.attachment') {
+                        return false;
+                    }
                     return this._getRandomSubRecordId();
                 case "one2many":
                 case "many2many": {
diff --git a/addons/web/static/tests/views/sample_server_tests.js b/addons/web/static/tests/views/sample_server_tests.js
index 0f1dd45f795..35e33e6366d 100644
--- a/addons/web/static/tests/views/sample_server_tests.js
+++ b/addons/web/static/tests/views/sample_server_tests.js
@@ -54,6 +54,7 @@ odoo.define('web.sample_server_tests', function (require) {
                     salary: { string: "Salary", type: 'monetary' },
                     currency: { string: "Currency", type: 'many2one', relation: 'res.currency' },
                     manager_id: { string: "Manager", type: 'many2one', relation: 'res.users' },
+                    cover_image_id: { string: "Cover Image", type: 'many2one', relation: 'ir.attachment' },
                     managed_ids: { string: "Managing", type: 'one2many', relation: 'res.users' },
                     tag_ids: { string: "Tags", type: 'many2many', relation: 'tag' },
                     type: { string: "Type", type: 'selection', selection: [
@@ -70,6 +71,9 @@ odoo.define('web.sample_server_tests', function (require) {
                     ] },
                     age: { string: "Age", type: 'integer' },
                 },
+                'ir.attachment': {
+                    display_name: { string: "Name", type: 'char' },
+                }
             };
         },
     }, function () {
@@ -77,7 +81,7 @@ odoo.define('web.sample_server_tests', function (require) {
         QUnit.module("Basic behaviour");
 
         QUnit.test("Sample data: people type + all field names", async function (assert) {
-            assert.expect(25);
+            assert.expect(26);
 
             mock.patch(session, {
                 company_currency_id: 4,
@@ -150,6 +154,8 @@ odoo.define('web.sample_server_tests', function (require) {
             assert.strictEqual(typeof rec.manager_id[0], 'number');
             assert.ok(SAMPLE_PEOPLE.includes(rec.manager_id[1]));
 
+            assert.strictEqual(rec.cover_image_id, false);
+
             assert.strictEqual(rec.managed_ids.length, 2);
             assert.ok(rec.managed_ids.every(
                 (id) => typeof id === 'number')