diff --git a/types/require.d.ts b/types/require.d.ts
index c060d7c3e..3b0f0876b 100644
--- a/types/require.d.ts
+++ b/types/require.d.ts
@@ -1,2 +1,2 @@
 export default function <T = any>(moduleName: string): T;
-export function has<T = any>(moduleName: string): T;
+export function has(moduleName: string): boolean;