diff --git a/packages/core/client/src/schema-component/antd/form-v2/Form.tsx b/packages/core/client/src/schema-component/antd/form-v2/Form.tsx
index 3e20b42755..828b953dff 100644
--- a/packages/core/client/src/schema-component/antd/form-v2/Form.tsx
+++ b/packages/core/client/src/schema-component/antd/form-v2/Form.tsx
@@ -80,7 +80,7 @@ const WithoutForm = (props) => {
       createForm({
         effects() {
           onFormInputChange((form) => {
-            setFormValueChanged(true);
+            setFormValueChanged?.(true);
           });
         },
       }),
diff --git a/packages/core/client/src/user/SigninPage.tsx b/packages/core/client/src/user/SigninPage.tsx
index 4ca16a5831..0b4f1c32c0 100644
--- a/packages/core/client/src/user/SigninPage.tsx
+++ b/packages/core/client/src/user/SigninPage.tsx
@@ -7,7 +7,7 @@ import { SchemaComponent, useAPIClient, useCurrentDocumentTitle, useSystemSettin
 const schema: ISchema = {
   type: 'object',
   name: uid(),
-  'x-component': 'Form',
+  'x-component': 'FormV2',
   properties: {
     email: {
       type: 'string',
diff --git a/packages/core/client/src/user/SignupPage.tsx b/packages/core/client/src/user/SignupPage.tsx
index 28a2d4b6a6..cffdd51d44 100644
--- a/packages/core/client/src/user/SignupPage.tsx
+++ b/packages/core/client/src/user/SignupPage.tsx
@@ -8,7 +8,7 @@ import { SchemaComponent, useAPIClient, useCurrentDocumentTitle, useSystemSettin
 const schema: ISchema = {
   type: 'object',
   name: uid(),
-  'x-component': 'Form',
+  'x-component': 'FormV2',
   properties: {
     email: {
       type: 'string',