diff --git a/frontend/src/vite-env.d.ts b/frontend/src/vite-env.d.ts
index a2ce25a..688f65a 100644
--- a/frontend/src/vite-env.d.ts
+++ b/frontend/src/vite-env.d.ts
@@ -1,6 +1,9 @@
 /// <reference types="vite/client" />
 
-declare module 'monaco-editor/esm/nls.messages.zh-cn';
+declare module 'monaco-editor/esm/nls.messages.zh-cn' {
+  const messages: Record<string, string>;
+  export default messages;
+}
 
 interface ImportMetaEnv {
   readonly VITE_GONAVI_ENABLE_MAC_WINDOW_DIAGNOSTICS?: string;