diff --git a/lru-cache/lru-cache.d.ts b/lru-cache/lru-cache.d.ts
index 7bca656bd8..0f92df2f68 100644
--- a/lru-cache/lru-cache.d.ts
+++ b/lru-cache/lru-cache.d.ts
@@ -17,7 +17,7 @@ declare module 'lru-cache' {
 		}
 
 		interface Cache<T> {
-			set(key: any, value: T): void;
+			set(key: any, value: T, maxAge?: number): void;
 			get(key: any): T;
 			peek(key: any): T;
 			has(key: any): boolean