diff --git a/types/ws/index.d.ts b/types/ws/index.d.ts
index 3667941753..1231d5af97 100644
--- a/types/ws/index.d.ts
+++ b/types/ws/index.d.ts
@@ -141,6 +141,7 @@ declare namespace WebSocket {
         key?: CertMeta;
         pfx?: string | Buffer;
         ca?: CertMeta;
+        maxPayload?: number;
     }
 
     interface PerMessageDeflateOptions {