diff --git a/types/restify/index.d.ts b/types/restify/index.d.ts
index 68193a9b85..9e04ad098e 100644
--- a/types/restify/index.d.ts
+++ b/types/restify/index.d.ts
@@ -1284,6 +1284,7 @@ export namespace plugins {
         multipartHandler?: any;
         mapParams?: boolean;
         mapFiles?: boolean;
+        maxFileSize?: number;
     }
 
     /**