diff --git a/packages/playwright/types/test.d.ts b/packages/playwright/types/test.d.ts
index 8d05bdafef..1b999da11b 100644
--- a/packages/playwright/types/test.d.ts
+++ b/packages/playwright/types/test.d.ts
@@ -7487,7 +7487,7 @@ export function defineConfig(config: PlaywrightTestConfig): PlaywrightTestConfig
 export function defineConfig<T>(config: PlaywrightTestConfig<T>): PlaywrightTestConfig<T>;
 export function defineConfig<T, W>(config: PlaywrightTestConfig<T, W>): PlaywrightTestConfig<T, W>;
 export function defineConfig(config: PlaywrightTestConfig, ...configs: PlaywrightTestConfig[]): PlaywrightTestConfig;
-export function defineConfig<T>(config: PlaywrightTestConfig<T>, ...configs: PlaywrightTestConfig[]): PlaywrightTestConfig<T>;
+export function defineConfig<T>(config: PlaywrightTestConfig<T>, ...configs: PlaywrightTestConfig<T>[]): PlaywrightTestConfig<T>;
 export function defineConfig<T, W>(config: PlaywrightTestConfig<T, W>, ...configs: PlaywrightTestConfig[]): PlaywrightTestConfig<T, W>;
 
 type MergedT<List> = List extends [TestType<infer T, any>, ...(infer Rest)] ? T & MergedT<Rest> : {};