diff --git a/docs/config.ts b/docs/config.ts
index 6f959538..b4cc4d2a 100644
--- a/docs/config.ts
+++ b/docs/config.ts
@@ -1,10 +1,10 @@
 import { createRequire } from 'module'
-import { defineConfig, type DefaultTheme } from 'vitepress'
+import { defineAdditionalConfig, type DefaultTheme } from 'vitepress'
 
 const require = createRequire(import.meta.url)
 const pkg = require('vitepress/package.json')
 
-export default defineConfig({
+export default defineAdditionalConfig({
   lang: 'en-US',
   description: 'Vite & Vue powered static site generator.',
 
diff --git a/docs/es/config.ts b/docs/es/config.ts
index 1420856d..14180280 100644
--- a/docs/es/config.ts
+++ b/docs/es/config.ts
@@ -1,16 +1,16 @@
 import { createRequire } from 'module'
-import { defineConfig, type DefaultTheme } from 'vitepress'
+import { defineAdditionalConfig, type DefaultTheme } from 'vitepress'
 
 const require = createRequire(import.meta.url)
 const pkg = require('vitepress/package.json')
 
-export default defineConfig({
+export default defineAdditionalConfig({
   lang: 'es-CO',
   description: 'Generador de Sitios Estaticos desarrollado con Vite y Vue.',
 
   themeConfig: {
     nav: nav(),
-    search: { options: searchOptions() } as DefaultTheme.Config['search'],
+    search: { options: searchOptions() },
     sidebar: {
       '/es/guide/': { base: '/es/guide/', items: sidebarGuide() },
       '/es/reference/': { base: '/es/reference/', items: sidebarReference() }
diff --git a/docs/fa/config.ts b/docs/fa/config.ts
index 55f53b52..6d38e250 100644
--- a/docs/fa/config.ts
+++ b/docs/fa/config.ts
@@ -1,10 +1,10 @@
 import { createRequire } from 'module'
-import { defineConfig, type DefaultTheme } from 'vitepress'
+import { defineAdditionalConfig, type DefaultTheme } from 'vitepress'
 
 const require = createRequire(import.meta.url)
 const pkg = require('vitepress/package.json')
 
-export default defineConfig({
+export default defineAdditionalConfig({
   title: 'ویت‌پرس',
   lang: 'fa-IR',
   description: 'Vite & Vue powered static site generator.',
@@ -20,7 +20,7 @@ export default defineConfig({
   },
   themeConfig: {
     nav: nav(),
-    search: { options: searchOptions() } as DefaultTheme.Config['search'],
+    search: { options: searchOptions() },
     sidebar: {
       '/fa/guide/': { base: '/fa/guide/', items: sidebarGuide() },
       '/fa/reference/': { base: '/fa/reference/', items: sidebarReference() }
diff --git a/docs/ko/config.ts b/docs/ko/config.ts
index 08773ccb..b6d30187 100644
--- a/docs/ko/config.ts
+++ b/docs/ko/config.ts
@@ -1,16 +1,16 @@
 import { createRequire } from 'module'
-import { defineConfig, type DefaultTheme } from 'vitepress'
+import { defineAdditionalConfig, type DefaultTheme } from 'vitepress'
 
 const require = createRequire(import.meta.url)
 const pkg = require('vitepress/package.json')
 
-export default defineConfig({
+export default defineAdditionalConfig({
   lang: 'ko-KR',
   description: 'Vite 및 Vue 기반 정적 사이트 생성기.',
 
   themeConfig: {
     nav: nav(),
-    search: { options: searchOptions() } as DefaultTheme.Config['search'],
+    search: { options: searchOptions() },
     sidebar: {
       '/ko/guide/': { base: '/ko/guide/', items: sidebarGuide() },
       '/ko/reference/': { base: '/ko/reference/', items: sidebarReference() }
diff --git a/docs/pt/config.ts b/docs/pt/config.ts
index aa08b7fa..d03e0e64 100644
--- a/docs/pt/config.ts
+++ b/docs/pt/config.ts
@@ -1,16 +1,16 @@
 import { createRequire } from 'module'
-import { defineConfig, type DefaultTheme } from 'vitepress'
+import { defineAdditionalConfig, type DefaultTheme } from 'vitepress'
 
 const require = createRequire(import.meta.url)
 const pkg = require('vitepress/package.json')
 
-export default defineConfig({
+export default defineAdditionalConfig({
   lang: 'pt-BR',
   description: 'Gerador de Site Estático desenvolvido com Vite e Vue.',
 
   themeConfig: {
     nav: nav(),
-    search: { options: searchOptions() } as DefaultTheme.Config['search'],
+    search: { options: searchOptions() },
     sidebar: {
       '/pt/guide/': { base: '/pt/guide/', items: sidebarGuide() },
       '/pt/reference/': { base: '/pt/reference/', items: sidebarReference() }
diff --git a/docs/ru/config.ts b/docs/ru/config.ts
index 41582f5e..5f856b1d 100644
--- a/docs/ru/config.ts
+++ b/docs/ru/config.ts
@@ -1,16 +1,16 @@
 import { createRequire } from 'module'
-import { defineConfig, type DefaultTheme } from 'vitepress'
+import { defineAdditionalConfig, type DefaultTheme } from 'vitepress'
 
 const require = createRequire(import.meta.url)
 const pkg = require('vitepress/package.json')
 
-export default defineConfig({
+export default defineAdditionalConfig({
   lang: 'ru-RU',
   description: 'Генератор статических сайтов на основе Vite и Vue.',
 
   themeConfig: {
     nav: nav(),
-    search: { options: searchOptions() } as DefaultTheme.Config['search'],
+    search: { options: searchOptions() },
     sidebar: {
       '/ru/guide/': { base: '/ru/guide/', items: sidebarGuide() },
       '/ru/reference/': { base: '/ru/reference/', items: sidebarReference() }
diff --git a/docs/zh/config.ts b/docs/zh/config.ts
index f8ff24ee..cf06d58a 100644
--- a/docs/zh/config.ts
+++ b/docs/zh/config.ts
@@ -1,16 +1,16 @@
 import { createRequire } from 'module'
-import { defineConfig, type DefaultTheme } from 'vitepress'
+import { defineAdditionalConfig, type DefaultTheme } from 'vitepress'
 
 const require = createRequire(import.meta.url)
 const pkg = require('vitepress/package.json')
 
-export default defineConfig({
+export default defineAdditionalConfig({
   lang: 'zh-Hans',
   description: '由 Vite 和 Vue 驱动的静态站点生成器',
 
   themeConfig: {
     nav: nav(),
-    search: { options: searchOptions() } as DefaultTheme.Config['search'],
+    search: { options: searchOptions() },
     sidebar: {
       '/zh/guide/': { base: '/zh/guide/', items: sidebarGuide() },
       '/zh/reference/': { base: '/zh/reference/', items: sidebarReference() }
diff --git a/src/node/config.ts b/src/node/config.ts
index a2634034..f657c307 100644
--- a/src/node/config.ts
+++ b/src/node/config.ts
@@ -14,10 +14,7 @@ import type { DefaultTheme } from './defaultTheme'
 import { resolvePages } from './plugins/dynamicRoutesPlugin'
 import { APPEARANCE_KEY, slash, type HeadConfig, type SiteData } from './shared'
 import type { RawConfigExports, SiteConfig, UserConfig } from './siteConfig'
-import type {
-  AdditionalConfigDict,
-  AdditionalConfigEntry
-} from '../../types/shared'
+import type { AdditionalConfig, AdditionalConfigDict } from '../../types/shared'
 import { glob } from 'tinyglobby'
 
 export { resolvePages } from './plugins/dynamicRoutesPlugin'
@@ -43,6 +40,15 @@ export function defineConfig(config: UserConfig<DefaultTheme.Config>) {
   return config
 }
 
+/**
+ *  Type additional config helper
+ */
+export function defineAdditionalConfig(
+  config: AdditionalConfig<DefaultTheme.Config>
+) {
+  return config
+}
+
 /**
  * Type config helper for custom theme config
  */
@@ -52,6 +58,15 @@ export function defineConfigWithTheme<ThemeConfig>(
   return config
 }
 
+/**
+ *  Type additional config helper
+ */
+export function defineAdditionalConfigWithTheme<ThemeConfig>(
+  config: AdditionalConfig<ThemeConfig>
+) {
+  return config
+}
+
 export async function resolveConfig(
   root: string = process.cwd(),
   command: 'serve' | 'build' = 'serve',
@@ -198,8 +213,9 @@ async function gatherAdditionalConfig(
           normalizePath(path.resolve(file))
         )
       )
-      if (mode === 'development') (configExports.config as any).VP_SOURCE = file
-      return [id, configExports.config as AdditionalConfigEntry]
+      if (mode === 'development')
+        (configExports.config as any)['[VP_SOURCE]'] = file
+      return [id, configExports.config as AdditionalConfig]
     })
   )
   return [Object.fromEntries(exports.filter(([id, config]) => config)), deps]