diff --git a/src/node/config.ts b/src/node/config.ts
index 09337fbb..b1b3e4a8 100644
--- a/src/node/config.ts
+++ b/src/node/config.ts
@@ -38,7 +38,6 @@ export interface UserConfig<ThemeConfig = any> {
    * Vite config
    */
   vite?: ViteConfig
-  customData?: any
 
   srcDir?: string
   srcExclude?: string[]
@@ -195,7 +194,6 @@ export async function resolveSiteData(
     head: userConfig.head || [],
     themeConfig: userConfig.themeConfig || {},
     locales: userConfig.locales || {},
-    langs: createLangDictionary(userConfig),
-    customData: userConfig.customData || {}
+    langs: createLangDictionary(userConfig)
   }
 }
diff --git a/types/shared.d.ts b/types/shared.d.ts
index 822061e6..e1af30ad 100644
--- a/types/shared.d.ts
+++ b/types/shared.d.ts
@@ -41,7 +41,6 @@ export interface SiteData<ThemeConfig = any> {
       label: string
     }
   >
-  customData: any
 }
 
 export type HeadConfig =