diff --git a/types/http-errors/index.d.ts b/types/http-errors/index.d.ts
index 90f8eeb13e..9969141091 100644
--- a/types/http-errors/index.d.ts
+++ b/types/http-errors/index.d.ts
@@ -20,9 +20,11 @@ declare namespace createHttpError {
         [key: string]: any;
     }
 
+    type UnknownError = Error | string | number | { [key: string]: any };
+
     type HttpErrorConstructor = new (msg?: string) => HttpError;
 
-    type CreateHttpError = (...args: Array<Error | string | number | { [key: string]: any }>) => HttpError;
+    type CreateHttpError = (...args: UnknownError[]) => HttpError;
 
     type NamedConstructors = {
         [code: string]: HttpErrorConstructor;