diff --git a/src/lib/es5.d.ts b/src/lib/es5.d.ts
index c213677feac..1f352cd6f39 100644
--- a/src/lib/es5.d.ts
+++ b/src/lib/es5.d.ts
@@ -1273,9 +1273,7 @@ declare type PropertyDecorator = (target: Object, propertyKey: string | symbol)
 declare type MethodDecorator = <T>(target: Object, propertyKey: string | symbol, descriptor: TypedPropertyDescriptor<T>) => TypedPropertyDescriptor<T> | void;
 declare type ParameterDecorator = (target: Object, propertyKey: string | symbol, parameterIndex: number) => void;
 
-interface PromiseConstructorLike {
-    new <T>(executor: (resolve: [T] extends [void] ? (value?: T | PromiseLike<T>) => void : (value: T | PromiseLike<T>) => void, reject: (reason?: any) => void) => void): PromiseLike<T>;
-}
+declare type PromiseConstructorLike = new <T>(executor: (resolve: (value?: T | PromiseLike<T>) => void, reject: (reason?: any) => void) => void) => PromiseLike<T>;
 
 interface PromiseLike<T> {
     /**