diff --git a/tar/index.d.ts b/tar/index.d.ts
index 3b2a6d176b..4b62578290 100644
--- a/tar/index.d.ts
+++ b/tar/index.d.ts
@@ -14,6 +14,7 @@ import stream = require("stream");
 export interface HeaderProperties {
     path?: string;
     mode?: number;
+    noProprietary?: boolean;
     uid?: number;
     gid?: number;
     size?: number;