diff --git a/packages/vitest/config.d.ts b/packages/vitest/config.d.ts
new file mode 100644
index 000000000000..2837ab8a73aa
--- /dev/null
+++ b/packages/vitest/config.d.ts
@@ -0,0 +1 @@
+export * from './dist/config'
diff --git a/packages/vitest/package.json b/packages/vitest/package.json
index 7d14b933ecaa..680a32ec7034 100644
--- a/packages/vitest/package.json
+++ b/packages/vitest/package.json
@@ -39,7 +39,7 @@
     "./config": {
       "import": "./dist/config.js",
       "require": "./dist/config.cjs",
-      "types": "./dist/config.d.ts"
+      "types": "./config.d.ts"
     }
   },
   "main": "./dist/index.js",
diff --git a/packages/vitest/src/config.ts b/packages/vitest/src/config.ts
index ca7f01e85ea9..ddd587d8fcbc 100644
--- a/packages/vitest/src/config.ts
+++ b/packages/vitest/src/config.ts
@@ -1,6 +1,12 @@
-import type { UserConfig } from 'vite'
+import type { UserConfig as ViteUserConfig } from 'vite'
+import type { InlineConfig } from './types'
+
+export interface UserConfig extends ViteUserConfig {
+  test?: InlineConfig
+}
 
 export { configDefaults } from './defaults'
+
 export function defineConfig(config: UserConfig) {
   return config
 }