diff --git a/docs/changelog/index.md b/docs/changelog/index.md
index 366803f3..67e86df0 100644
--- a/docs/changelog/index.md
+++ b/docs/changelog/index.md
@@ -20,6 +20,7 @@ sidebar: false
 
 ### 修复
 
+- 修复添加 DNS 账号时因直接传递 class static 方法作为 React Query 的 mutationFn 导致 JavaScript 丢失 `this` 上下文报错 `this.post is not a function` 的问题。
 - 修复侧边栏一级菜单项当前页面字体颜色被硬编码为 `#6366F1` 的问题，改用 CSS 主题变量 `text-sidebar-primary`，以保证在多主题系统下的色彩一致性。
 - 修复默认（Default）主题因遗漏声明 `destructive-foreground` 变量，导致删除按钮（如确认删除证书弹窗）在某些状态下渲染为黑底黑字而无法阅读的问题。
 
diff --git a/frontend/app/(main)/websites/components/dns-account-create-dialog.tsx b/frontend/app/(main)/websites/components/dns-account-create-dialog.tsx
index e0adfd5b..c8f9893c 100644
--- a/frontend/app/(main)/websites/components/dns-account-create-dialog.tsx
+++ b/frontend/app/(main)/websites/components/dns-account-create-dialog.tsx
@@ -20,6 +20,7 @@ import {Input} from '@/components/ui/input';
 import {Label} from '@/components/ui/label';
 import {Select, SelectContent, SelectItem, SelectTrigger, SelectValue,} from '@/components/ui/select';
 import {DnsAccountService} from '@/lib/services/openflare';
+import type {DnsAccountMutationPayload} from '@/lib/services/openflare';
 
 import {getErrorMessage} from './website-utils';
 
@@ -52,7 +53,7 @@ export function DnsAccountCreateDialog({
   });
 
   const createMutation = useMutation({
-    mutationFn: DnsAccountService.create,
+    mutationFn: (payload: DnsAccountMutationPayload) => DnsAccountService.create(payload),
     onSuccess: async () => {
       await queryClient.invalidateQueries({queryKey: dnsAccountsQueryKey});
       form.reset();