diff --git a/action.js b/action.js
index b1d05f7..c42d836 100644
--- a/action.js
+++ b/action.js
@@ -63,7 +63,7 @@ let r = await fetch(`${repoBaseUrl}/${libName}.tgz`, {
   headers: {
     Authorization: `Basic ${Buffer.from(`${process.env.INPUT_REPO_USER}:${process.env.INPUT_REPO_PASS}`).toString("base64")}`,
   },
-  body: readFileSync(`${libName}.tgz`).buffer,
+  body: readFileSync(tarName).buffer,
 });
 
 if (r.status > 399) {